31490550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:807

約数の個数: 144

約数和(自身を含む): 104264160

約数和(自身を除く): 72773610

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 150, 175, 182, 195, 210, 225, 234, 273, 315, 325, 350, 390, 450, 455, 525, 546, 585, 630, 650, 769, 819, 910, 975, 1050, 1170, 1365, 1538, 1575, 1638, 1950, 2275, 2307, 2730, 2925, 3150, 3845, 4095, 4550, 4614, 5383, 5850, 6825, 6921, 7690, 8190, 9997, 10766, 11535, 13650, 13842, 16149, 19225, 19994, 20475, 23070, 26915, 29991, 32298, 34605, 38450, 40950, 48447, 49985, 53830, 57675, 59982, 69210, 69979, 80745, 89973, 96894, 99970, 115350, 134575, 139958, 149955, 161490, 173025, 179946, 209937, 242235, 249925, 269150, 299910, 346050, 349895, 403725, 419874, 449865, 484470, 499850, 629811, 699790, 749775, 807450, 899730, 1049685, 1211175, 1259622, 1499550, 1749475, 2099370, 2249325, 2422350, 3149055, 3498950, 4498650, 5248425, 6298110, 10496850, 15745275, 31490550]

約数ペア:

[(1, 31490550), (2, 15745275), (3, 10496850), (5, 6298110), (6, 5248425), (7, 4498650), (9, 3498950), (10, 3149055), (13, 2422350), (14, 2249325), (15, 2099370), (18, 1749475), (21, 1499550), (25, 1259622), (26, 1211175), (30, 1049685), (35, 899730), (39, 807450), (42, 749775), (45, 699790), (50, 629811), (63, 499850), (65, 484470), (70, 449865), (75, 419874), (78, 403725), (90, 349895), (91, 346050), (105, 299910), (117, 269150), (126, 249925), (130, 242235), (150, 209937), (175, 179946), (182, 173025), (195, 161490), (210, 149955), (225, 139958), (234, 134575), (273, 115350), (315, 99970), (325, 96894), (350, 89973), (390, 80745), (450, 69979), (455, 69210), (525, 59982), (546, 57675), (585, 53830), (630, 49985), (650, 48447), (769, 40950), (819, 38450), (910, 34605), (975, 32298), (1050, 29991), (1170, 26915), (1365, 23070), (1538, 20475), (1575, 19994), (1638, 19225), (1950, 16149), (2275, 13842), (2307, 13650), (2730, 11535), (2925, 10766), (3150, 9997), (3845, 8190), (4095, 7690), (4550, 6921), (4614, 6825), (5383, 5850)]