18952740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1569

約数の個数: 72

約数和(自身を含む): 58339008

約数和(自身を除く): 39386268

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, 1483, 2130, 2556, 2966, 3195, 4260, 4449, 5932, 6390, 7415, 8898, 12780, 13347, 14830, 17796, 22245, 26694, 29660, 44490, 53388, 66735, 88980, 105293, 133470, 210586, 266940, 315879, 421172, 526465, 631758, 947637, 1052930, 1263516, 1579395, 1895274, 2105860, 3158790, 3790548, 4738185, 6317580, 9476370, 18952740]

約数ペア:

[(1, 18952740), (2, 9476370), (3, 6317580), (4, 4738185), (5, 3790548), (6, 3158790), (9, 2105860), (10, 1895274), (12, 1579395), (15, 1263516), (18, 1052930), (20, 947637), (30, 631758), (36, 526465), (45, 421172), (60, 315879), (71, 266940), (90, 210586), (142, 133470), (180, 105293), (213, 88980), (284, 66735), (355, 53388), (426, 44490), (639, 29660), (710, 26694), (852, 22245), (1065, 17796), (1278, 14830), (1420, 13347), (1483, 12780), (2130, 8898), (2556, 7415), (2966, 6390), (3195, 5932), (4260, 4449)]