28155720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 90979200

約数和(自身を除く): 62823480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 53, 57, 60, 76, 95, 106, 114, 120, 152, 159, 190, 212, 228, 233, 265, 285, 318, 380, 424, 456, 466, 530, 570, 636, 699, 760, 795, 932, 1007, 1060, 1140, 1165, 1272, 1398, 1590, 1864, 2014, 2120, 2280, 2330, 2796, 3021, 3180, 3495, 4028, 4427, 4660, 5035, 5592, 6042, 6360, 6990, 8056, 8854, 9320, 10070, 12084, 12349, 13281, 13980, 15105, 17708, 20140, 22135, 24168, 24698, 26562, 27960, 30210, 35416, 37047, 40280, 44270, 49396, 53124, 60420, 61745, 66405, 74094, 88540, 98792, 106248, 120840, 123490, 132810, 148188, 177080, 185235, 234631, 246980, 265620, 296376, 370470, 469262, 493960, 531240, 703893, 740940, 938524, 1173155, 1407786, 1481880, 1877048, 2346310, 2815572, 3519465, 4692620, 5631144, 7038930, 9385240, 14077860, 28155720]

約数ペア:

[(1, 28155720), (2, 14077860), (3, 9385240), (4, 7038930), (5, 5631144), (6, 4692620), (8, 3519465), (10, 2815572), (12, 2346310), (15, 1877048), (19, 1481880), (20, 1407786), (24, 1173155), (30, 938524), (38, 740940), (40, 703893), (53, 531240), (57, 493960), (60, 469262), (76, 370470), (95, 296376), (106, 265620), (114, 246980), (120, 234631), (152, 185235), (159, 177080), (190, 148188), (212, 132810), (228, 123490), (233, 120840), (265, 106248), (285, 98792), (318, 88540), (380, 74094), (424, 66405), (456, 61745), (466, 60420), (530, 53124), (570, 49396), (636, 44270), (699, 40280), (760, 37047), (795, 35416), (932, 30210), (1007, 27960), (1060, 26562), (1140, 24698), (1165, 24168), (1272, 22135), (1398, 20140), (1590, 17708), (1864, 15105), (2014, 13980), (2120, 13281), (2280, 12349), (2330, 12084), (2796, 10070), (3021, 9320), (3180, 8854), (3495, 8056), (4028, 6990), (4427, 6360), (4660, 6042), (5035, 5592)]