278280996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{12791}}^1$

素因数の和:12849

約数の個数: 72

約数和(自身を含む): 775809216

約数和(自身を除く): 497528220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 1036, 1554, 1813, 3108, 3626, 5439, 7252, 10878, 12791, 21756, 25582, 38373, 51164, 76746, 89537, 153492, 179074, 268611, 358148, 473267, 537222, 626759, 946534, 1074444, 1253518, 1419801, 1880277, 1893068, 2507036, 2839602, 3312869, 3760554, 5679204, 6625738, 7521108, 9938607, 13251476, 19877214, 23190083, 39754428, 46380166, 69570249, 92760332, 139140498, 278280996]

約数ペア:

[(1, 278280996), (2, 139140498), (3, 92760332), (4, 69570249), (6, 46380166), (7, 39754428), (12, 23190083), (14, 19877214), (21, 13251476), (28, 9938607), (37, 7521108), (42, 6625738), (49, 5679204), (74, 3760554), (84, 3312869), (98, 2839602), (111, 2507036), (147, 1893068), (148, 1880277), (196, 1419801), (222, 1253518), (259, 1074444), (294, 946534), (444, 626759), (518, 537222), (588, 473267), (777, 358148), (1036, 268611), (1554, 179074), (1813, 153492), (3108, 89537), (3626, 76746), (5439, 51164), (7252, 38373), (10878, 25582), (12791, 21756)]