20235634480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{402139}}^1$

素因数の和:402206

約数の個数: 80

約数和(自身を含む): 51161859360

約数和(自身を除く): 30926224880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 68, 74, 80, 85, 136, 148, 170, 185, 272, 296, 340, 370, 592, 629, 680, 740, 1258, 1360, 1480, 2516, 2960, 3145, 5032, 6290, 10064, 12580, 25160, 50320, 402139, 804278, 1608556, 2010695, 3217112, 4021390, 6434224, 6836363, 8042780, 13672726, 14879143, 16085560, 27345452, 29758286, 32171120, 34181815, 54690904, 59516572, 68363630, 74395715, 109381808, 119033144, 136727260, 148791430, 238066288, 252945431, 273454520, 297582860, 505890862, 546909040, 595165720, 1011781724, 1190331440, 1264727155, 2023563448, 2529454310, 4047126896, 5058908620, 10117817240, 20235634480]

約数ペア:

[(1, 20235634480), (2, 10117817240), (4, 5058908620), (5, 4047126896), (8, 2529454310), (10, 2023563448), (16, 1264727155), (17, 1190331440), (20, 1011781724), (34, 595165720), (37, 546909040), (40, 505890862), (68, 297582860), (74, 273454520), (80, 252945431), (85, 238066288), (136, 148791430), (148, 136727260), (170, 119033144), (185, 109381808), (272, 74395715), (296, 68363630), (340, 59516572), (370, 54690904), (592, 34181815), (629, 32171120), (680, 29758286), (740, 27345452), (1258, 16085560), (1360, 14879143), (1480, 13672726), (2516, 8042780), (2960, 6836363), (3145, 6434224), (5032, 4021390), (6290, 3217112), (10064, 2010695), (12580, 1608556), (25160, 804278), (50320, 402139)]