161554900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{823}}^1$

素因数の和:1001

約数の個数: 72

約数和(自身を含む): 380503424

約数和(自身を除く): 218948524

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 151, 260, 302, 325, 604, 650, 755, 823, 1300, 1510, 1646, 1963, 3020, 3292, 3775, 3926, 4115, 7550, 7852, 8230, 9815, 10699, 15100, 16460, 19630, 20575, 21398, 39260, 41150, 42796, 49075, 53495, 82300, 98150, 106990, 124273, 196300, 213980, 248546, 267475, 497092, 534950, 621365, 1069900, 1242730, 1615549, 2485460, 3106825, 3231098, 6213650, 6462196, 8077745, 12427300, 16155490, 32310980, 40388725, 80777450, 161554900]

約数ペア:

[(1, 161554900), (2, 80777450), (4, 40388725), (5, 32310980), (10, 16155490), (13, 12427300), (20, 8077745), (25, 6462196), (26, 6213650), (50, 3231098), (52, 3106825), (65, 2485460), (100, 1615549), (130, 1242730), (151, 1069900), (260, 621365), (302, 534950), (325, 497092), (604, 267475), (650, 248546), (755, 213980), (823, 196300), (1300, 124273), (1510, 106990), (1646, 98150), (1963, 82300), (3020, 53495), (3292, 49075), (3775, 42796), (3926, 41150), (4115, 39260), (7550, 21398), (7852, 20575), (8230, 19630), (9815, 16460), (10699, 15100)]