72778420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{25447}}^1$

素因数の和:25480

約数の個数: 48

約数和(自身を含む): 179561088

約数和(自身を除く): 106782668

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 25447, 50894, 101788, 127235, 254470, 279917, 330811, 508940, 559834, 661622, 1119668, 1323244, 1399585, 1654055, 2799170, 3308110, 3638921, 5598340, 6616220, 7277842, 14555684, 18194605, 36389210, 72778420]

約数ペア:

[(1, 72778420), (2, 36389210), (4, 18194605), (5, 14555684), (10, 7277842), (11, 6616220), (13, 5598340), (20, 3638921), (22, 3308110), (26, 2799170), (44, 1654055), (52, 1399585), (55, 1323244), (65, 1119668), (110, 661622), (130, 559834), (143, 508940), (220, 330811), (260, 279917), (286, 254470), (572, 127235), (715, 101788), (1430, 50894), (2860, 25447)]