21903960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:785

約数の個数: 128

約数和(自身を含む): 74592000

約数和(自身を除く): 52688040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 739, 741, 760, 780, 988, 1140, 1235, 1478, 1482, 1560, 1976, 2217, 2280, 2470, 2956, 2964, 3695, 3705, 4434, 4940, 5912, 5928, 7390, 7410, 8868, 9607, 9880, 11085, 14041, 14780, 14820, 17736, 19214, 22170, 28082, 28821, 29560, 29640, 38428, 42123, 44340, 48035, 56164, 57642, 70205, 76856, 84246, 88680, 96070, 112328, 115284, 140410, 144105, 168492, 182533, 192140, 210615, 230568, 280820, 288210, 336984, 365066, 384280, 421230, 547599, 561640, 576420, 730132, 842460, 912665, 1095198, 1152840, 1460264, 1684920, 1825330, 2190396, 2737995, 3650660, 4380792, 5475990, 7301320, 10951980, 21903960]

約数ペア:

[(1, 21903960), (2, 10951980), (3, 7301320), (4, 5475990), (5, 4380792), (6, 3650660), (8, 2737995), (10, 2190396), (12, 1825330), (13, 1684920), (15, 1460264), (19, 1152840), (20, 1095198), (24, 912665), (26, 842460), (30, 730132), (38, 576420), (39, 561640), (40, 547599), (52, 421230), (57, 384280), (60, 365066), (65, 336984), (76, 288210), (78, 280820), (95, 230568), (104, 210615), (114, 192140), (120, 182533), (130, 168492), (152, 144105), (156, 140410), (190, 115284), (195, 112328), (228, 96070), (247, 88680), (260, 84246), (285, 76856), (312, 70205), (380, 57642), (390, 56164), (456, 48035), (494, 44340), (520, 42123), (570, 38428), (739, 29640), (741, 29560), (760, 28821), (780, 28082), (988, 22170), (1140, 19214), (1235, 17736), (1478, 14820), (1482, 14780), (1560, 14041), (1976, 11085), (2217, 9880), (2280, 9607), (2470, 8868), (2956, 7410), (2964, 7390), (3695, 5928), (3705, 5912), (4434, 4940)]