638545171970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4157}}^1\times {\mathrm{808459}}^1$

素因数の和:812642

約数の個数: 32

約数和(自身を含む): 1210167604800

約数和(自身を除く): 571622432830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 4157, 8314, 20785, 41570, 78983, 157966, 394915, 789830, 808459, 1616918, 4042295, 8084590, 15360721, 30721442, 76803605, 153607210, 3360764063, 6721528126, 16803820315, 33607640630, 63854517197, 127709034394, 319272585985, 638545171970]

約数ペア:

[(1, 638545171970), (2, 319272585985), (5, 127709034394), (10, 63854517197), (19, 33607640630), (38, 16803820315), (95, 6721528126), (190, 3360764063), (4157, 153607210), (8314, 76803605), (20785, 30721442), (41570, 15360721), (78983, 8084590), (157966, 4042295), (394915, 1616918), (789830, 808459)]