20351280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4498

約数の個数: 80

約数和(自身を含む): 66424320

約数和(自身を除く): 46073040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4463, 4560, 8926, 13389, 17852, 22315, 26778, 35704, 44630, 53556, 66945, 71408, 84797, 89260, 107112, 133890, 169594, 178520, 214224, 254391, 267780, 339188, 357040, 423985, 508782, 535560, 678376, 847970, 1017564, 1071120, 1271955, 1356752, 1695940, 2035128, 2543910, 3391880, 4070256, 5087820, 6783760, 10175640, 20351280]

約数ペア:

[(1, 20351280), (2, 10175640), (3, 6783760), (4, 5087820), (5, 4070256), (6, 3391880), (8, 2543910), (10, 2035128), (12, 1695940), (15, 1356752), (16, 1271955), (19, 1071120), (20, 1017564), (24, 847970), (30, 678376), (38, 535560), (40, 508782), (48, 423985), (57, 357040), (60, 339188), (76, 267780), (80, 254391), (95, 214224), (114, 178520), (120, 169594), (152, 133890), (190, 107112), (228, 89260), (240, 84797), (285, 71408), (304, 66945), (380, 53556), (456, 44630), (570, 35704), (760, 26778), (912, 22315), (1140, 17852), (1520, 13389), (2280, 8926), (4463, 4560)]