990393200

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:943

約数の個数: 120

約数和(自身を含む): 2472091776

約数和(自身を除く): 1481698576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 71, 80, 86, 100, 142, 172, 200, 215, 284, 344, 355, 400, 430, 568, 688, 710, 811, 860, 1075, 1136, 1420, 1622, 1720, 1775, 2150, 2840, 3053, 3244, 3440, 3550, 4055, 4300, 5680, 6106, 6488, 7100, 8110, 8600, 12212, 12976, 14200, 15265, 16220, 17200, 20275, 24424, 28400, 30530, 32440, 34873, 40550, 48848, 57581, 61060, 64880, 69746, 76325, 81100, 115162, 122120, 139492, 152650, 162200, 174365, 230324, 244240, 278984, 287905, 305300, 324400, 348730, 460648, 557968, 575810, 610600, 697460, 871825, 921296, 1151620, 1221200, 1394920, 1439525, 1743650, 2303240, 2475983, 2789840, 2879050, 3487300, 4606480, 4951966, 5758100, 6974600, 9903932, 11516200, 12379915, 13949200, 19807864, 23032400, 24759830, 39615728, 49519660, 61899575, 99039320, 123799150, 198078640, 247598300, 495196600, 990393200]

約数ペア:

[(1, 990393200), (2, 495196600), (4, 247598300), (5, 198078640), (8, 123799150), (10, 99039320), (16, 61899575), (20, 49519660), (25, 39615728), (40, 24759830), (43, 23032400), (50, 19807864), (71, 13949200), (80, 12379915), (86, 11516200), (100, 9903932), (142, 6974600), (172, 5758100), (200, 4951966), (215, 4606480), (284, 3487300), (344, 2879050), (355, 2789840), (400, 2475983), (430, 2303240), (568, 1743650), (688, 1439525), (710, 1394920), (811, 1221200), (860, 1151620), (1075, 921296), (1136, 871825), (1420, 697460), (1622, 610600), (1720, 575810), (1775, 557968), (2150, 460648), (2840, 348730), (3053, 324400), (3244, 305300), (3440, 287905), (3550, 278984), (4055, 244240), (4300, 230324), (5680, 174365), (6106, 162200), (6488, 152650), (7100, 139492), (8110, 122120), (8600, 115162), (12212, 81100), (12976, 76325), (14200, 69746), (15265, 64880), (16220, 61060), (17200, 57581), (20275, 48848), (24424, 40550), (28400, 34873), (30530, 32440)]