261926704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 579962880

約数和(自身を除く): 318036176

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 191, 208, 247, 304, 347, 382, 494, 694, 764, 988, 1388, 1528, 1976, 2483, 2776, 3056, 3629, 3952, 4511, 4966, 5552, 6593, 7258, 9022, 9932, 13186, 14516, 18044, 19864, 26372, 29032, 36088, 39728, 47177, 52744, 58064, 66277, 72176, 85709, 94354, 105488, 132554, 171418, 188708, 265108, 342836, 377416, 530216, 685672, 754832, 861601, 1060432, 1259263, 1371344, 1723202, 2518526, 3446404, 5037052, 6892808, 10074104, 13785616, 16370419, 20148208, 32740838, 65481676, 130963352, 261926704]

約数ペア:

[(1, 261926704), (2, 130963352), (4, 65481676), (8, 32740838), (13, 20148208), (16, 16370419), (19, 13785616), (26, 10074104), (38, 6892808), (52, 5037052), (76, 3446404), (104, 2518526), (152, 1723202), (191, 1371344), (208, 1259263), (247, 1060432), (304, 861601), (347, 754832), (382, 685672), (494, 530216), (694, 377416), (764, 342836), (988, 265108), (1388, 188708), (1528, 171418), (1976, 132554), (2483, 105488), (2776, 94354), (3056, 85709), (3629, 72176), (3952, 66277), (4511, 58064), (4966, 52744), (5552, 47177), (6593, 39728), (7258, 36088), (9022, 29032), (9932, 26372), (13186, 19864), (14516, 18044)]