721990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:192

約数の個数: 32

約数和(自身を含む): 1430784

約数和(自身を除く): 708794

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 137, 155, 170, 274, 310, 527, 685, 1054, 1370, 2329, 2635, 4247, 4658, 5270, 8494, 11645, 21235, 23290, 42470, 72199, 144398, 360995, 721990]

約数ペア:

[(1, 721990), (2, 360995), (5, 144398), (10, 72199), (17, 42470), (31, 23290), (34, 21235), (62, 11645), (85, 8494), (137, 5270), (155, 4658), (170, 4247), (274, 2635), (310, 2329), (527, 1370), (685, 1054)]