119793020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{659}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 257796000

約数和(自身を除く): 138002980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 149, 244, 298, 305, 596, 610, 659, 745, 1220, 1318, 1490, 2636, 2980, 3295, 6590, 9089, 13180, 18178, 36356, 40199, 45445, 80398, 90890, 98191, 160796, 181780, 196382, 200995, 392764, 401990, 490955, 803980, 981910, 1963820, 5989651, 11979302, 23958604, 29948255, 59896510, 119793020]

約数ペア:

[(1, 119793020), (2, 59896510), (4, 29948255), (5, 23958604), (10, 11979302), (20, 5989651), (61, 1963820), (122, 981910), (149, 803980), (244, 490955), (298, 401990), (305, 392764), (596, 200995), (610, 196382), (659, 181780), (745, 160796), (1220, 98191), (1318, 90890), (1490, 80398), (2636, 45445), (2980, 40199), (3295, 36356), (6590, 18178), (9089, 13180)]