31421250

素因数分解:

$2^1\times 3^3\times 5^4\times 7^2\times {\mathrm{19}}^1$

素因数の和:64

約数の個数: 240

約数和(自身を含む): 106840800

約数和(自身を除く): 75419550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 27, 30, 35, 38, 42, 45, 49, 50, 54, 57, 63, 70, 75, 90, 95, 98, 105, 114, 125, 126, 133, 135, 147, 150, 171, 175, 189, 190, 210, 225, 245, 250, 266, 270, 285, 294, 315, 342, 350, 375, 378, 399, 441, 450, 475, 490, 513, 525, 570, 625, 630, 665, 675, 735, 750, 798, 855, 875, 882, 931, 945, 950, 1026, 1050, 1125, 1197, 1225, 1250, 1323, 1330, 1350, 1425, 1470, 1575, 1710, 1750, 1862, 1875, 1890, 1995, 2205, 2250, 2375, 2394, 2450, 2565, 2625, 2646, 2793, 2850, 3150, 3325, 3375, 3591, 3675, 3750, 3990, 4275, 4375, 4410, 4655, 4725, 4750, 5130, 5250, 5586, 5625, 5985, 6125, 6615, 6650, 6750, 7125, 7182, 7350, 7875, 8379, 8550, 8750, 9310, 9450, 9975, 11025, 11250, 11875, 11970, 12250, 12825, 13125, 13230, 13965, 14250, 15750, 16625, 16758, 16875, 17955, 18375, 19950, 21375, 22050, 23275, 23625, 23750, 25137, 25650, 26250, 27930, 29925, 30625, 33075, 33250, 33750, 35625, 35910, 36750, 39375, 41895, 42750, 46550, 47250, 49875, 50274, 55125, 59850, 61250, 64125, 66150, 69825, 71250, 78750, 83125, 83790, 89775, 91875, 99750, 106875, 110250, 116375, 118125, 125685, 128250, 139650, 149625, 165375, 166250, 179550, 183750, 209475, 213750, 232750, 236250, 249375, 251370, 275625, 299250, 320625, 330750, 349125, 418950, 448875, 498750, 551250, 581875, 628425, 641250, 698250, 748125, 826875, 897750, 1047375, 1163750, 1256850, 1496250, 1653750, 1745625, 2094750, 2244375, 3142125, 3491250, 4488750, 5236875, 6284250, 10473750, 15710625, 31421250]

約数ペア:

[(1, 31421250), (2, 15710625), (3, 10473750), (5, 6284250), (6, 5236875), (7, 4488750), (9, 3491250), (10, 3142125), (14, 2244375), (15, 2094750), (18, 1745625), (19, 1653750), (21, 1496250), (25, 1256850), (27, 1163750), (30, 1047375), (35, 897750), (38, 826875), (42, 748125), (45, 698250), (49, 641250), (50, 628425), (54, 581875), (57, 551250), (63, 498750), (70, 448875), (75, 418950), (90, 349125), (95, 330750), (98, 320625), (105, 299250), (114, 275625), (125, 251370), (126, 249375), (133, 236250), (135, 232750), (147, 213750), (150, 209475), (171, 183750), (175, 179550), (189, 166250), (190, 165375), (210, 149625), (225, 139650), (245, 128250), (250, 125685), (266, 118125), (270, 116375), (285, 110250), (294, 106875), (315, 99750), (342, 91875), (350, 89775), (375, 83790), (378, 83125), (399, 78750), (441, 71250), (450, 69825), (475, 66150), (490, 64125), (513, 61250), (525, 59850), (570, 55125), (625, 50274), (630, 49875), (665, 47250), (675, 46550), (735, 42750), (750, 41895), (798, 39375), (855, 36750), (875, 35910), (882, 35625), (931, 33750), (945, 33250), (950, 33075), (1026, 30625), (1050, 29925), (1125, 27930), (1197, 26250), (1225, 25650), (1250, 25137), (1323, 23750), (1330, 23625), (1350, 23275), (1425, 22050), (1470, 21375), (1575, 19950), (1710, 18375), (1750, 17955), (1862, 16875), (1875, 16758), (1890, 16625), (1995, 15750), (2205, 14250), (2250, 13965), (2375, 13230), (2394, 13125), (2450, 12825), (2565, 12250), (2625, 11970), (2646, 11875), (2793, 11250), (2850, 11025), (3150, 9975), (3325, 9450), (3375, 9310), (3591, 8750), (3675, 8550), (3750, 8379), (3990, 7875), (4275, 7350), (4375, 7182), (4410, 7125), (4655, 6750), (4725, 6650), (4750, 6615), (5130, 6125), (5250, 5985), (5586, 5625)]