28428750

素因数分解:

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

素因数の和:73

約数の個数: 180

約数和(自身を含む): 92839032

約数和(自身を除く): 64410282

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 30, 35, 38, 42, 45, 50, 57, 63, 70, 75, 90, 95, 105, 114, 125, 126, 133, 150, 171, 175, 190, 210, 225, 250, 266, 285, 315, 342, 350, 361, 375, 399, 450, 475, 525, 570, 625, 630, 665, 722, 750, 798, 855, 875, 950, 1050, 1083, 1125, 1197, 1250, 1330, 1425, 1575, 1710, 1750, 1805, 1875, 1995, 2166, 2250, 2375, 2394, 2527, 2625, 2850, 3150, 3249, 3325, 3610, 3750, 3990, 4275, 4375, 4750, 5054, 5250, 5415, 5625, 5985, 6498, 6650, 7125, 7581, 7875, 8550, 8750, 9025, 9975, 10830, 11250, 11875, 11970, 12635, 13125, 14250, 15162, 15750, 16245, 16625, 18050, 19950, 21375, 22743, 23750, 25270, 26250, 27075, 29925, 32490, 33250, 35625, 37905, 39375, 42750, 45125, 45486, 49875, 54150, 59850, 63175, 71250, 75810, 78750, 81225, 83125, 90250, 99750, 106875, 113715, 126350, 135375, 149625, 162450, 166250, 189525, 213750, 225625, 227430, 249375, 270750, 299250, 315875, 379050, 406125, 451250, 498750, 568575, 631750, 676875, 748125, 812250, 947625, 1137150, 1353750, 1496250, 1579375, 1895250, 2030625, 2842875, 3158750, 4061250, 4738125, 5685750, 9476250, 14214375, 28428750]

約数ペア:

[(1, 28428750), (2, 14214375), (3, 9476250), (5, 5685750), (6, 4738125), (7, 4061250), (9, 3158750), (10, 2842875), (14, 2030625), (15, 1895250), (18, 1579375), (19, 1496250), (21, 1353750), (25, 1137150), (30, 947625), (35, 812250), (38, 748125), (42, 676875), (45, 631750), (50, 568575), (57, 498750), (63, 451250), (70, 406125), (75, 379050), (90, 315875), (95, 299250), (105, 270750), (114, 249375), (125, 227430), (126, 225625), (133, 213750), (150, 189525), (171, 166250), (175, 162450), (190, 149625), (210, 135375), (225, 126350), (250, 113715), (266, 106875), (285, 99750), (315, 90250), (342, 83125), (350, 81225), (361, 78750), (375, 75810), (399, 71250), (450, 63175), (475, 59850), (525, 54150), (570, 49875), (625, 45486), (630, 45125), (665, 42750), (722, 39375), (750, 37905), (798, 35625), (855, 33250), (875, 32490), (950, 29925), (1050, 27075), (1083, 26250), (1125, 25270), (1197, 23750), (1250, 22743), (1330, 21375), (1425, 19950), (1575, 18050), (1710, 16625), (1750, 16245), (1805, 15750), (1875, 15162), (1995, 14250), (2166, 13125), (2250, 12635), (2375, 11970), (2394, 11875), (2527, 11250), (2625, 10830), (2850, 9975), (3150, 9025), (3249, 8750), (3325, 8550), (3610, 7875), (3750, 7581), (3990, 7125), (4275, 6650), (4375, 6498), (4750, 5985), (5054, 5625), (5250, 5415)]