290400242

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{43}}^2\times {\mathrm{59}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 498843360

約数和(自身を除く): 208443118

約数列:

[1, 2, 11, 22, 43, 59, 86, 118, 121, 242, 473, 649, 946, 1298, 1331, 1849, 2537, 2662, 3698, 5074, 5203, 7139, 10406, 14278, 20339, 27907, 40678, 55814, 57233, 78529, 109091, 114466, 157058, 218182, 223729, 306977, 447458, 613954, 1200001, 2400002, 2461019, 3376747, 4922038, 6753494, 13200011, 26400022, 145200121, 290400242]

約数ペア:

[(1, 290400242), (2, 145200121), (11, 26400022), (22, 13200011), (43, 6753494), (59, 4922038), (86, 3376747), (118, 2461019), (121, 2400002), (242, 1200001), (473, 613954), (649, 447458), (946, 306977), (1298, 223729), (1331, 218182), (1849, 157058), (2537, 114466), (2662, 109091), (3698, 78529), (5074, 57233), (5203, 55814), (7139, 40678), (10406, 27907), (14278, 20339)]