1221591420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4271}}^1$

素因数の和:4520

約数の個数: 144

約数和(自身を含む): 4254501888

約数和(自身を除く): 3032910468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 227, 252, 315, 420, 454, 630, 681, 908, 1135, 1260, 1362, 1589, 2043, 2270, 2724, 3178, 3405, 4086, 4271, 4540, 4767, 6356, 6810, 7945, 8172, 8542, 9534, 10215, 12813, 13620, 14301, 15890, 17084, 19068, 20430, 21355, 23835, 25626, 28602, 29897, 31780, 38439, 40860, 42710, 47670, 51252, 57204, 59794, 64065, 71505, 76878, 85420, 89691, 95340, 119588, 128130, 143010, 149485, 153756, 179382, 192195, 256260, 269073, 286020, 298970, 358764, 384390, 448455, 538146, 597940, 768780, 896910, 969517, 1076292, 1345365, 1793820, 1939034, 2690730, 2908551, 3878068, 4847585, 5381460, 5817102, 6786619, 8725653, 9695170, 11634204, 13573238, 14542755, 17451306, 19390340, 20359857, 27146476, 29085510, 33933095, 34902612, 40719714, 43628265, 58171020, 61079571, 67866190, 81439428, 87256530, 101799285, 122159142, 135732380, 174513060, 203598570, 244318284, 305397855, 407197140, 610795710, 1221591420]

約数ペア:

[(1, 1221591420), (2, 610795710), (3, 407197140), (4, 305397855), (5, 244318284), (6, 203598570), (7, 174513060), (9, 135732380), (10, 122159142), (12, 101799285), (14, 87256530), (15, 81439428), (18, 67866190), (20, 61079571), (21, 58171020), (28, 43628265), (30, 40719714), (35, 34902612), (36, 33933095), (42, 29085510), (45, 27146476), (60, 20359857), (63, 19390340), (70, 17451306), (84, 14542755), (90, 13573238), (105, 11634204), (126, 9695170), (140, 8725653), (180, 6786619), (210, 5817102), (227, 5381460), (252, 4847585), (315, 3878068), (420, 2908551), (454, 2690730), (630, 1939034), (681, 1793820), (908, 1345365), (1135, 1076292), (1260, 969517), (1362, 896910), (1589, 768780), (2043, 597940), (2270, 538146), (2724, 448455), (3178, 384390), (3405, 358764), (4086, 298970), (4271, 286020), (4540, 269073), (4767, 256260), (6356, 192195), (6810, 179382), (7945, 153756), (8172, 149485), (8542, 143010), (9534, 128130), (10215, 119588), (12813, 95340), (13620, 89691), (14301, 85420), (15890, 76878), (17084, 71505), (19068, 64065), (20430, 59794), (21355, 57204), (23835, 51252), (25626, 47670), (28602, 42710), (29897, 40860), (31780, 38439)]