21950873720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{257}}^1\times {\mathrm{2539}}^1$

素因数の和:2865

約数の個数: 96

約数和(自身を含む): 51370534800

約数和(自身を除く): 29419661080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 257, 290, 514, 580, 841, 1028, 1160, 1285, 1682, 2056, 2539, 2570, 3364, 4205, 5078, 5140, 6728, 7453, 8410, 10156, 10280, 12695, 14906, 16820, 20312, 25390, 29812, 33640, 37265, 50780, 59624, 73631, 74530, 101560, 147262, 149060, 216137, 294524, 298120, 368155, 432274, 589048, 652523, 736310, 864548, 1080685, 1305046, 1472620, 1729096, 2135299, 2161370, 2610092, 2945240, 3262615, 4270598, 4322740, 5220184, 6525230, 8541196, 8645480, 10676495, 13050460, 17082392, 18923167, 21352990, 26100920, 37846334, 42705980, 75692668, 85411960, 94615835, 151385336, 189231670, 378463340, 548771843, 756926680, 1097543686, 2195087372, 2743859215, 4390174744, 5487718430, 10975436860, 21950873720]

約数ペア:

[(1, 21950873720), (2, 10975436860), (4, 5487718430), (5, 4390174744), (8, 2743859215), (10, 2195087372), (20, 1097543686), (29, 756926680), (40, 548771843), (58, 378463340), (116, 189231670), (145, 151385336), (232, 94615835), (257, 85411960), (290, 75692668), (514, 42705980), (580, 37846334), (841, 26100920), (1028, 21352990), (1160, 18923167), (1285, 17082392), (1682, 13050460), (2056, 10676495), (2539, 8645480), (2570, 8541196), (3364, 6525230), (4205, 5220184), (5078, 4322740), (5140, 4270598), (6728, 3262615), (7453, 2945240), (8410, 2610092), (10156, 2161370), (10280, 2135299), (12695, 1729096), (14906, 1472620), (16820, 1305046), (20312, 1080685), (25390, 864548), (29812, 736310), (33640, 652523), (37265, 589048), (50780, 432274), (59624, 368155), (73631, 298120), (74530, 294524), (101560, 216137), (147262, 149060)]