18930860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4283}}^1$

素因数の和:4322

約数の個数: 48

約数和(自身を含む): 45341856

約数和(自身を除く): 26410996

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4283, 4420, 8566, 17132, 21415, 42830, 55679, 72811, 85660, 111358, 145622, 222716, 278395, 291244, 364055, 556790, 728110, 946543, 1113580, 1456220, 1893086, 3786172, 4732715, 9465430, 18930860]

約数ペア:

[(1, 18930860), (2, 9465430), (4, 4732715), (5, 3786172), (10, 1893086), (13, 1456220), (17, 1113580), (20, 946543), (26, 728110), (34, 556790), (52, 364055), (65, 291244), (68, 278395), (85, 222716), (130, 145622), (170, 111358), (221, 85660), (260, 72811), (340, 55679), (442, 42830), (884, 21415), (1105, 17132), (2210, 8566), (4283, 4420)]