689210228

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2\times {\mathrm{149}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 1452326400

約数和(自身を除く): 763116172

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 73, 124, 146, 149, 217, 292, 298, 434, 511, 596, 868, 1022, 1043, 2044, 2086, 2263, 4172, 4526, 4619, 5329, 9052, 9238, 10658, 10877, 15841, 18476, 21316, 21754, 31682, 32333, 37303, 43508, 63364, 64666, 74606, 76139, 129332, 149212, 152278, 165199, 304556, 330398, 337187, 660796, 674374, 794021, 1156393, 1348748, 1588042, 2312786, 2360309, 3176084, 4625572, 4720618, 5558147, 9441236, 11116294, 22232588, 24614651, 49229302, 98458604, 172302557, 344605114, 689210228]

約数ペア:

[(1, 689210228), (2, 344605114), (4, 172302557), (7, 98458604), (14, 49229302), (28, 24614651), (31, 22232588), (62, 11116294), (73, 9441236), (124, 5558147), (146, 4720618), (149, 4625572), (217, 3176084), (292, 2360309), (298, 2312786), (434, 1588042), (511, 1348748), (596, 1156393), (868, 794021), (1022, 674374), (1043, 660796), (2044, 337187), (2086, 330398), (2263, 304556), (4172, 165199), (4526, 152278), (4619, 149212), (5329, 129332), (9052, 76139), (9238, 74606), (10658, 64666), (10877, 63364), (15841, 43508), (18476, 37303), (21316, 32333), (21754, 31682)]