20125558480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{322939}}^1$

素因数の和:323012

約数の個数: 80

約数和(自身を含む): 50456145600

約数和(自身を除く): 30330587120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1640, 3116, 3280, 3895, 6232, 7790, 12464, 15580, 31160, 62320, 322939, 645878, 1291756, 1614695, 2583512, 3229390, 5167024, 6135841, 6458780, 12271682, 12917560, 13240499, 24543364, 25835120, 26480998, 30679205, 49086728, 52961996, 61358410, 66202495, 98173456, 105923992, 122716820, 132404990, 211847984, 245433640, 251569481, 264809980, 490867280, 503138962, 529619960, 1006277924, 1059239920, 1257847405, 2012555848, 2515694810, 4025111696, 5031389620, 10062779240, 20125558480]

約数ペア:

[(1, 20125558480), (2, 10062779240), (4, 5031389620), (5, 4025111696), (8, 2515694810), (10, 2012555848), (16, 1257847405), (19, 1059239920), (20, 1006277924), (38, 529619960), (40, 503138962), (41, 490867280), (76, 264809980), (80, 251569481), (82, 245433640), (95, 211847984), (152, 132404990), (164, 122716820), (190, 105923992), (205, 98173456), (304, 66202495), (328, 61358410), (380, 52961996), (410, 49086728), (656, 30679205), (760, 26480998), (779, 25835120), (820, 24543364), (1520, 13240499), (1558, 12917560), (1640, 12271682), (3116, 6458780), (3280, 6135841), (3895, 5167024), (6232, 3229390), (7790, 2583512), (12464, 1614695), (15580, 1291756), (31160, 645878), (62320, 322939)]