220978980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17291}}^1$

素因数の和:17377

約数の個数: 72

約数和(自身を含む): 679783104

約数和(自身を除く): 458804124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 17291, 34582, 51873, 69164, 86455, 103746, 155619, 172910, 207492, 259365, 311238, 345820, 518730, 622476, 778095, 1037460, 1227661, 1556190, 2455322, 3112380, 3682983, 4910644, 6138305, 7365966, 11048949, 12276610, 14731932, 18414915, 22097898, 24553220, 36829830, 44195796, 55244745, 73659660, 110489490, 220978980]

約数ペア:

[(1, 220978980), (2, 110489490), (3, 73659660), (4, 55244745), (5, 44195796), (6, 36829830), (9, 24553220), (10, 22097898), (12, 18414915), (15, 14731932), (18, 12276610), (20, 11048949), (30, 7365966), (36, 6138305), (45, 4910644), (60, 3682983), (71, 3112380), (90, 2455322), (142, 1556190), (180, 1227661), (213, 1037460), (284, 778095), (355, 622476), (426, 518730), (639, 345820), (710, 311238), (852, 259365), (1065, 207492), (1278, 172910), (1420, 155619), (2130, 103746), (2556, 86455), (3195, 69164), (4260, 51873), (6390, 34582), (12780, 17291)]