20187145425

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{1499}}^1$

素因数の和:1783

約数の個数: 96

約数和(自身を含む): 35961984000

約数和(自身を除く): 15774838575

約数列:

[1, 3, 5, 15, 23, 25, 37, 69, 75, 111, 115, 185, 211, 345, 555, 575, 633, 851, 925, 1055, 1499, 1725, 2553, 2775, 3165, 4255, 4497, 4853, 5275, 7495, 7807, 12765, 14559, 15825, 21275, 22485, 23421, 24265, 34477, 37475, 39035, 55463, 63825, 72795, 103431, 112425, 117105, 121325, 166389, 172385, 179561, 195175, 277315, 316289, 363975, 517155, 538683, 585525, 831945, 861925, 897805, 948867, 1275649, 1386575, 1581445, 2585775, 2693415, 3826947, 4159725, 4489025, 4744335, 6378245, 7274647, 7907225, 11702693, 13467075, 19134735, 21823941, 23721675, 31891225, 35108079, 36373235, 58513465, 95673675, 109119705, 175540395, 181866175, 269161939, 292567325, 545598525, 807485817, 877701975, 1345809695, 4037429085, 6729048475, 20187145425]

約数ペア:

[(1, 20187145425), (3, 6729048475), (5, 4037429085), (15, 1345809695), (23, 877701975), (25, 807485817), (37, 545598525), (69, 292567325), (75, 269161939), (111, 181866175), (115, 175540395), (185, 109119705), (211, 95673675), (345, 58513465), (555, 36373235), (575, 35108079), (633, 31891225), (851, 23721675), (925, 21823941), (1055, 19134735), (1499, 13467075), (1725, 11702693), (2553, 7907225), (2775, 7274647), (3165, 6378245), (4255, 4744335), (4497, 4489025), (4853, 4159725), (5275, 3826947), (7495, 2693415), (7807, 2585775), (12765, 1581445), (14559, 1386575), (15825, 1275649), (21275, 948867), (22485, 897805), (23421, 861925), (24265, 831945), (34477, 585525), (37475, 538683), (39035, 517155), (55463, 363975), (63825, 316289), (72795, 277315), (103431, 195175), (112425, 179561), (117105, 172385), (121325, 166389)]