28413980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6547}}^1$

素因数の和:6594

約数の個数: 48

約数和(自身を含む): 70404096

約数和(自身を除く): 41990116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6547, 13094, 26188, 32735, 45829, 65470, 91658, 130940, 183316, 202957, 229145, 405914, 458290, 811828, 916580, 1014785, 1420699, 2029570, 2841398, 4059140, 5682796, 7103495, 14206990, 28413980]

約数ペア:

[(1, 28413980), (2, 14206990), (4, 7103495), (5, 5682796), (7, 4059140), (10, 2841398), (14, 2029570), (20, 1420699), (28, 1014785), (31, 916580), (35, 811828), (62, 458290), (70, 405914), (124, 229145), (140, 202957), (155, 183316), (217, 130940), (310, 91658), (434, 65470), (620, 45829), (868, 32735), (1085, 26188), (2170, 13094), (4340, 6547)]