20090963600

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1620239}}^1$

素因数の和:1620288

約数の個数: 60

約数和(自身を含む): 49825620480

約数和(自身を除く): 29734656880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 1620239, 3240478, 6480956, 8101195, 12961912, 16202390, 25923824, 32404780, 40505975, 50227409, 64809560, 81011950, 100454818, 129619120, 162023900, 200909636, 251137045, 324047800, 401819272, 502274090, 648095600, 803638544, 1004548180, 1255685225, 2009096360, 2511370450, 4018192720, 5022740900, 10045481800, 20090963600]

約数ペア:

[(1, 20090963600), (2, 10045481800), (4, 5022740900), (5, 4018192720), (8, 2511370450), (10, 2009096360), (16, 1255685225), (20, 1004548180), (25, 803638544), (31, 648095600), (40, 502274090), (50, 401819272), (62, 324047800), (80, 251137045), (100, 200909636), (124, 162023900), (155, 129619120), (200, 100454818), (248, 81011950), (310, 64809560), (400, 50227409), (496, 40505975), (620, 32404780), (775, 25923824), (1240, 16202390), (1550, 12961912), (2480, 8101195), (3100, 6480956), (6200, 3240478), (12400, 1620239)]