74906780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4723}}^1$

素因数の和:4806

約数の個数: 48

約数和(自身を含む): 172218144

約数和(自身を除く): 97311364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4723, 7930, 9446, 15860, 18892, 23615, 47230, 61399, 94460, 122798, 245596, 288103, 306995, 576206, 613990, 1152412, 1227980, 1440515, 2881030, 3745339, 5762060, 7490678, 14981356, 18726695, 37453390, 74906780]

約数ペア:

[(1, 74906780), (2, 37453390), (4, 18726695), (5, 14981356), (10, 7490678), (13, 5762060), (20, 3745339), (26, 2881030), (52, 1440515), (61, 1227980), (65, 1152412), (122, 613990), (130, 576206), (244, 306995), (260, 288103), (305, 245596), (610, 122798), (793, 94460), (1220, 61399), (1586, 47230), (3172, 23615), (3965, 18892), (4723, 15860), (7930, 9446)]