81439800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 278419680

約数和(自身を除く): 196979880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 53, 60, 65, 75, 78, 100, 104, 106, 120, 130, 150, 156, 159, 195, 197, 200, 212, 260, 265, 300, 312, 318, 325, 390, 394, 424, 520, 530, 591, 600, 636, 650, 689, 780, 788, 795, 975, 985, 1060, 1182, 1272, 1300, 1325, 1378, 1560, 1576, 1590, 1950, 1970, 2067, 2120, 2364, 2561, 2600, 2650, 2756, 2955, 3180, 3445, 3900, 3940, 3975, 4134, 4728, 4925, 5122, 5300, 5512, 5910, 6360, 6890, 7683, 7800, 7880, 7950, 8268, 9850, 10244, 10335, 10441, 10600, 11820, 12805, 13780, 14775, 15366, 15900, 16536, 17225, 19700, 20488, 20670, 20882, 23640, 25610, 27560, 29550, 30732, 31323, 31800, 34450, 38415, 39400, 41340, 41764, 51220, 51675, 52205, 59100, 61464, 62646, 64025, 68900, 76830, 82680, 83528, 102440, 103350, 104410, 118200, 125292, 128050, 135733, 137800, 153660, 156615, 192075, 206700, 208820, 250584, 256100, 261025, 271466, 307320, 313230, 384150, 407199, 413400, 417640, 512200, 522050, 542932, 626460, 678665, 768300, 783075, 814398, 1044100, 1085864, 1252920, 1357330, 1536600, 1566150, 1628796, 2035995, 2088200, 2714660, 3132300, 3257592, 3393325, 4071990, 5429320, 6264600, 6786650, 8143980, 10179975, 13573300, 16287960, 20359950, 27146600, 40719900, 81439800]

約数ペア:

[(1, 81439800), (2, 40719900), (3, 27146600), (4, 20359950), (5, 16287960), (6, 13573300), (8, 10179975), (10, 8143980), (12, 6786650), (13, 6264600), (15, 5429320), (20, 4071990), (24, 3393325), (25, 3257592), (26, 3132300), (30, 2714660), (39, 2088200), (40, 2035995), (50, 1628796), (52, 1566150), (53, 1536600), (60, 1357330), (65, 1252920), (75, 1085864), (78, 1044100), (100, 814398), (104, 783075), (106, 768300), (120, 678665), (130, 626460), (150, 542932), (156, 522050), (159, 512200), (195, 417640), (197, 413400), (200, 407199), (212, 384150), (260, 313230), (265, 307320), (300, 271466), (312, 261025), (318, 256100), (325, 250584), (390, 208820), (394, 206700), (424, 192075), (520, 156615), (530, 153660), (591, 137800), (600, 135733), (636, 128050), (650, 125292), (689, 118200), (780, 104410), (788, 103350), (795, 102440), (975, 83528), (985, 82680), (1060, 76830), (1182, 68900), (1272, 64025), (1300, 62646), (1325, 61464), (1378, 59100), (1560, 52205), (1576, 51675), (1590, 51220), (1950, 41764), (1970, 41340), (2067, 39400), (2120, 38415), (2364, 34450), (2561, 31800), (2600, 31323), (2650, 30732), (2756, 29550), (2955, 27560), (3180, 25610), (3445, 23640), (3900, 20882), (3940, 20670), (3975, 20488), (4134, 19700), (4728, 17225), (4925, 16536), (5122, 15900), (5300, 15366), (5512, 14775), (5910, 13780), (6360, 12805), (6890, 11820), (7683, 10600), (7800, 10441), (7880, 10335), (7950, 10244), (8268, 9850)]