19475300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 46372032

約数和(自身を除く): 26896732

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 211, 260, 284, 325, 355, 422, 650, 710, 844, 923, 1055, 1300, 1420, 1775, 1846, 2110, 2743, 3550, 3692, 4220, 4615, 5275, 5486, 7100, 9230, 10550, 10972, 13715, 14981, 18460, 21100, 23075, 27430, 29962, 46150, 54860, 59924, 68575, 74905, 92300, 137150, 149810, 194753, 274300, 299620, 374525, 389506, 749050, 779012, 973765, 1498100, 1947530, 3895060, 4868825, 9737650, 19475300]

約数ペア:

[(1, 19475300), (2, 9737650), (4, 4868825), (5, 3895060), (10, 1947530), (13, 1498100), (20, 973765), (25, 779012), (26, 749050), (50, 389506), (52, 374525), (65, 299620), (71, 274300), (100, 194753), (130, 149810), (142, 137150), (211, 92300), (260, 74905), (284, 68575), (325, 59924), (355, 54860), (422, 46150), (650, 29962), (710, 27430), (844, 23075), (923, 21100), (1055, 18460), (1300, 14981), (1420, 13715), (1775, 10972), (1846, 10550), (2110, 9230), (2743, 7100), (3550, 5486), (3692, 5275), (4220, 4615)]