278413980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{27457}}^1$

素因数の和:27495

約数の個数: 72

約数和(自身を含む): 844168752

約数和(自身を除く): 565754772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 10140, 27457, 54914, 82371, 109828, 137285, 164742, 274570, 329484, 356941, 411855, 549140, 713882, 823710, 1070823, 1427764, 1647420, 1784705, 2141646, 3569410, 4283292, 4640233, 5354115, 7138820, 9280466, 10708230, 13920699, 18560932, 21416460, 23201165, 27841398, 46402330, 55682796, 69603495, 92804660, 139206990, 278413980]

約数ペア:

[(1, 278413980), (2, 139206990), (3, 92804660), (4, 69603495), (5, 55682796), (6, 46402330), (10, 27841398), (12, 23201165), (13, 21416460), (15, 18560932), (20, 13920699), (26, 10708230), (30, 9280466), (39, 7138820), (52, 5354115), (60, 4640233), (65, 4283292), (78, 3569410), (130, 2141646), (156, 1784705), (169, 1647420), (195, 1427764), (260, 1070823), (338, 823710), (390, 713882), (507, 549140), (676, 411855), (780, 356941), (845, 329484), (1014, 274570), (1690, 164742), (2028, 137285), (2535, 109828), (3380, 82371), (5070, 54914), (10140, 27457)]