20346962500

素因数分解:

$2^2\times 5^5\times {\mathrm{97}}^2\times {\mathrm{173}}^1$

素因数の和:396

約数の個数: 108

約数和(自身を含む): 45229628556

約数和(自身を除く): 24882666056

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 173, 194, 250, 346, 388, 485, 500, 625, 692, 865, 970, 1250, 1730, 1940, 2425, 2500, 3125, 3460, 4325, 4850, 6250, 8650, 9409, 9700, 12125, 12500, 16781, 17300, 18818, 21625, 24250, 33562, 37636, 43250, 47045, 48500, 60625, 67124, 83905, 86500, 94090, 108125, 121250, 167810, 188180, 216250, 235225, 242500, 303125, 335620, 419525, 432500, 470450, 540625, 606250, 839050, 940900, 1081250, 1176125, 1212500, 1627757, 1678100, 2097625, 2162500, 2352250, 3255514, 4195250, 4704500, 5880625, 6511028, 8138785, 8390500, 10488125, 11761250, 16277570, 20976250, 23522500, 29403125, 32555140, 40693925, 41952500, 52440625, 58806250, 81387850, 104881250, 117612500, 162775700, 203469625, 209762500, 406939250, 813878500, 1017348125, 2034696250, 4069392500, 5086740625, 10173481250, 20346962500]

約数ペア:

[(1, 20346962500), (2, 10173481250), (4, 5086740625), (5, 4069392500), (10, 2034696250), (20, 1017348125), (25, 813878500), (50, 406939250), (97, 209762500), (100, 203469625), (125, 162775700), (173, 117612500), (194, 104881250), (250, 81387850), (346, 58806250), (388, 52440625), (485, 41952500), (500, 40693925), (625, 32555140), (692, 29403125), (865, 23522500), (970, 20976250), (1250, 16277570), (1730, 11761250), (1940, 10488125), (2425, 8390500), (2500, 8138785), (3125, 6511028), (3460, 5880625), (4325, 4704500), (4850, 4195250), (6250, 3255514), (8650, 2352250), (9409, 2162500), (9700, 2097625), (12125, 1678100), (12500, 1627757), (16781, 1212500), (17300, 1176125), (18818, 1081250), (21625, 940900), (24250, 839050), (33562, 606250), (37636, 540625), (43250, 470450), (47045, 432500), (48500, 419525), (60625, 335620), (67124, 303125), (83905, 242500), (86500, 235225), (94090, 216250), (108125, 188180), (121250, 167810)]