421497890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1979

約数の個数: 64

約数和(自身を含む): 868734720

約数和(自身を除く): 447236830

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 71, 110, 142, 145, 290, 319, 355, 638, 710, 781, 1562, 1595, 1861, 2059, 3190, 3722, 3905, 4118, 7810, 9305, 10295, 18610, 20471, 20590, 22649, 40942, 45298, 53969, 102355, 107938, 113245, 132131, 204710, 226490, 264262, 269845, 539690, 593659, 660655, 1187318, 1321310, 1453441, 2906882, 2968295, 3831799, 5936590, 7267205, 7663598, 14534410, 19158995, 38317990, 42149789, 84299578, 210748945, 421497890]

約数ペア:

[(1, 421497890), (2, 210748945), (5, 84299578), (10, 42149789), (11, 38317990), (22, 19158995), (29, 14534410), (55, 7663598), (58, 7267205), (71, 5936590), (110, 3831799), (142, 2968295), (145, 2906882), (290, 1453441), (319, 1321310), (355, 1187318), (638, 660655), (710, 593659), (781, 539690), (1562, 269845), (1595, 264262), (1861, 226490), (2059, 204710), (3190, 132131), (3722, 113245), (3905, 107938), (4118, 102355), (7810, 53969), (9305, 45298), (10295, 40942), (18610, 22649), (20471, 20590)]