20145850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 40196088

約数和(自身を除く): 20050238

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 137, 170, 173, 274, 346, 425, 685, 850, 865, 1370, 1730, 2329, 2941, 3425, 4325, 4658, 5882, 6850, 8650, 11645, 14705, 23290, 23701, 29410, 47402, 58225, 73525, 116450, 118505, 147050, 237010, 402917, 592525, 805834, 1185050, 2014585, 4029170, 10072925, 20145850]

約数ペア:

[(1, 20145850), (2, 10072925), (5, 4029170), (10, 2014585), (17, 1185050), (25, 805834), (34, 592525), (50, 402917), (85, 237010), (137, 147050), (170, 118505), (173, 116450), (274, 73525), (346, 58225), (425, 47402), (685, 29410), (850, 23701), (865, 23290), (1370, 14705), (1730, 11645), (2329, 8650), (2941, 6850), (3425, 5882), (4325, 4658)]