18495100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 44403408

約数和(自身を除く): 25908308

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 41, 50, 52, 65, 82, 100, 130, 164, 205, 260, 325, 347, 410, 533, 650, 694, 820, 1025, 1066, 1300, 1388, 1735, 2050, 2132, 2665, 3470, 4100, 4511, 5330, 6940, 8675, 9022, 10660, 13325, 14227, 17350, 18044, 22555, 26650, 28454, 34700, 45110, 53300, 56908, 71135, 90220, 112775, 142270, 184951, 225550, 284540, 355675, 369902, 451100, 711350, 739804, 924755, 1422700, 1849510, 3699020, 4623775, 9247550, 18495100]

約数ペア:

[(1, 18495100), (2, 9247550), (4, 4623775), (5, 3699020), (10, 1849510), (13, 1422700), (20, 924755), (25, 739804), (26, 711350), (41, 451100), (50, 369902), (52, 355675), (65, 284540), (82, 225550), (100, 184951), (130, 142270), (164, 112775), (205, 90220), (260, 71135), (325, 56908), (347, 53300), (410, 45110), (533, 34700), (650, 28454), (694, 26650), (820, 22555), (1025, 18044), (1066, 17350), (1300, 14227), (1388, 13325), (1735, 10660), (2050, 9022), (2132, 8675), (2665, 6940), (3470, 5330), (4100, 4511)]