291217940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{353}}^1$

素因数の和:561

約数の個数: 96

約数和(自身を含む): 699390720

約数和(自身を除く): 408172780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 167, 190, 247, 260, 334, 353, 380, 494, 668, 706, 835, 988, 1235, 1412, 1670, 1765, 2171, 2470, 3173, 3340, 3530, 4342, 4589, 4940, 6346, 6707, 7060, 8684, 9178, 10855, 12692, 13414, 15865, 18356, 21710, 22945, 26828, 31730, 33535, 41249, 43420, 45890, 58951, 63460, 67070, 82498, 87191, 91780, 117902, 134140, 164996, 174382, 206245, 235804, 294755, 348764, 412490, 435955, 589510, 766363, 824980, 871910, 1120069, 1179020, 1532726, 1743820, 2240138, 3065452, 3831815, 4480276, 5600345, 7663630, 11200690, 14560897, 15327260, 22401380, 29121794, 58243588, 72804485, 145608970, 291217940]

約数ペア:

[(1, 291217940), (2, 145608970), (4, 72804485), (5, 58243588), (10, 29121794), (13, 22401380), (19, 15327260), (20, 14560897), (26, 11200690), (38, 7663630), (52, 5600345), (65, 4480276), (76, 3831815), (95, 3065452), (130, 2240138), (167, 1743820), (190, 1532726), (247, 1179020), (260, 1120069), (334, 871910), (353, 824980), (380, 766363), (494, 589510), (668, 435955), (706, 412490), (835, 348764), (988, 294755), (1235, 235804), (1412, 206245), (1670, 174382), (1765, 164996), (2171, 134140), (2470, 117902), (3173, 91780), (3340, 87191), (3530, 82498), (4342, 67070), (4589, 63460), (4940, 58951), (6346, 45890), (6707, 43420), (7060, 41249), (8684, 33535), (9178, 31730), (10855, 26828), (12692, 22945), (13414, 21710), (15865, 18356)]