78983660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18199}}^1$

素因数の和:18246

約数の個数: 48

約数和(自身を含む): 195686400

約数和(自身を除く): 116702740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18199, 36398, 72796, 90995, 127393, 181990, 254786, 363980, 509572, 564169, 636965, 1128338, 1273930, 2256676, 2547860, 2820845, 3949183, 5641690, 7898366, 11283380, 15796732, 19745915, 39491830, 78983660]

約数ペア:

[(1, 78983660), (2, 39491830), (4, 19745915), (5, 15796732), (7, 11283380), (10, 7898366), (14, 5641690), (20, 3949183), (28, 2820845), (31, 2547860), (35, 2256676), (62, 1273930), (70, 1128338), (124, 636965), (140, 564169), (155, 509572), (217, 363980), (310, 254786), (434, 181990), (620, 127393), (868, 90995), (1085, 72796), (2170, 36398), (4340, 18199)]