1722980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 4279296

約数和(自身を除く): 2556316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 397, 434, 620, 794, 868, 1085, 1588, 1985, 2170, 2779, 3970, 4340, 5558, 7940, 11116, 12307, 13895, 24614, 27790, 49228, 55580, 61535, 86149, 123070, 172298, 246140, 344596, 430745, 861490, 1722980]

約数ペア:

[(1, 1722980), (2, 861490), (4, 430745), (5, 344596), (7, 246140), (10, 172298), (14, 123070), (20, 86149), (28, 61535), (31, 55580), (35, 49228), (62, 27790), (70, 24614), (124, 13895), (140, 12307), (155, 11116), (217, 7940), (310, 5558), (397, 4340), (434, 3970), (620, 2779), (794, 2170), (868, 1985), (1085, 1588)]