81405120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4502

約数の個数: 112

約数和(自身を含む): 272125440

約数和(自身を除く): 190720320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 152, 160, 190, 192, 228, 240, 285, 304, 320, 380, 456, 480, 570, 608, 760, 912, 960, 1140, 1216, 1520, 1824, 2280, 3040, 3648, 4463, 4560, 6080, 8926, 9120, 13389, 17852, 18240, 22315, 26778, 35704, 44630, 53556, 66945, 71408, 84797, 89260, 107112, 133890, 142816, 169594, 178520, 214224, 254391, 267780, 285632, 339188, 357040, 423985, 428448, 508782, 535560, 678376, 714080, 847970, 856896, 1017564, 1071120, 1271955, 1356752, 1428160, 1695940, 2035128, 2142240, 2543910, 2713504, 3391880, 4070256, 4284480, 5087820, 5427008, 6783760, 8140512, 10175640, 13567520, 16281024, 20351280, 27135040, 40702560, 81405120]

約数ペア:

[(1, 81405120), (2, 40702560), (3, 27135040), (4, 20351280), (5, 16281024), (6, 13567520), (8, 10175640), (10, 8140512), (12, 6783760), (15, 5427008), (16, 5087820), (19, 4284480), (20, 4070256), (24, 3391880), (30, 2713504), (32, 2543910), (38, 2142240), (40, 2035128), (48, 1695940), (57, 1428160), (60, 1356752), (64, 1271955), (76, 1071120), (80, 1017564), (95, 856896), (96, 847970), (114, 714080), (120, 678376), (152, 535560), (160, 508782), (190, 428448), (192, 423985), (228, 357040), (240, 339188), (285, 285632), (304, 267780), (320, 254391), (380, 214224), (456, 178520), (480, 169594), (570, 142816), (608, 133890), (760, 107112), (912, 89260), (960, 84797), (1140, 71408), (1216, 66945), (1520, 53556), (1824, 44630), (2280, 35704), (3040, 26778), (3648, 22315), (4463, 18240), (4560, 17852), (6080, 13389), (8926, 9120)]