20177609800

素因数分解:

$2^3\times 5^2\times {\mathrm{149}}^1\times {\mathrm{431}}^1\times {\mathrm{1571}}^1$

素因数の和:2167

約数の個数: 96

約数和(自身を含む): 47367504000

約数和(自身を除く): 27189894200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 149, 200, 298, 431, 596, 745, 862, 1192, 1490, 1571, 1724, 2155, 2980, 3142, 3448, 3725, 4310, 5960, 6284, 7450, 7855, 8620, 10775, 12568, 14900, 15710, 17240, 21550, 29800, 31420, 39275, 43100, 62840, 64219, 78550, 86200, 128438, 157100, 234079, 256876, 314200, 321095, 468158, 513752, 642190, 677101, 936316, 1170395, 1284380, 1354202, 1605475, 1872632, 2340790, 2568760, 2708404, 3210950, 3385505, 4681580, 5416808, 5851975, 6421900, 6771010, 9363160, 11703950, 12843800, 13542020, 16927525, 23407900, 27084040, 33855050, 46815800, 67710100, 100888049, 135420200, 201776098, 403552196, 504440245, 807104392, 1008880490, 2017760980, 2522201225, 4035521960, 5044402450, 10088804900, 20177609800]

約数ペア:

[(1, 20177609800), (2, 10088804900), (4, 5044402450), (5, 4035521960), (8, 2522201225), (10, 2017760980), (20, 1008880490), (25, 807104392), (40, 504440245), (50, 403552196), (100, 201776098), (149, 135420200), (200, 100888049), (298, 67710100), (431, 46815800), (596, 33855050), (745, 27084040), (862, 23407900), (1192, 16927525), (1490, 13542020), (1571, 12843800), (1724, 11703950), (2155, 9363160), (2980, 6771010), (3142, 6421900), (3448, 5851975), (3725, 5416808), (4310, 4681580), (5960, 3385505), (6284, 3210950), (7450, 2708404), (7855, 2568760), (8620, 2340790), (10775, 1872632), (12568, 1605475), (14900, 1354202), (15710, 1284380), (17240, 1170395), (21550, 936316), (29800, 677101), (31420, 642190), (39275, 513752), (43100, 468158), (62840, 321095), (64219, 314200), (78550, 256876), (86200, 234079), (128438, 157100)]