161223720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{3917}}^1$

素因数の和:3952

約数の個数: 128

約数和(自身を含む): 564192000

約数和(自身を除く): 402968280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 735, 840, 980, 1029, 1176, 1372, 1470, 1715, 1960, 2058, 2744, 2940, 3430, 3917, 4116, 5145, 5880, 6860, 7834, 8232, 10290, 11751, 13720, 15668, 19585, 20580, 23502, 27419, 31336, 39170, 41160, 47004, 54838, 58755, 78340, 82257, 94008, 109676, 117510, 137095, 156680, 164514, 191933, 219352, 235020, 274190, 329028, 383866, 411285, 470040, 548380, 575799, 658056, 767732, 822570, 959665, 1096760, 1151598, 1343531, 1535464, 1645140, 1919330, 2303196, 2687062, 2878995, 3290280, 3838660, 4030593, 4606392, 5374124, 5757990, 6717655, 7677320, 8061186, 10748248, 11515980, 13435310, 16122372, 20152965, 23031960, 26870620, 32244744, 40305930, 53741240, 80611860, 161223720]

約数ペア:

[(1, 161223720), (2, 80611860), (3, 53741240), (4, 40305930), (5, 32244744), (6, 26870620), (7, 23031960), (8, 20152965), (10, 16122372), (12, 13435310), (14, 11515980), (15, 10748248), (20, 8061186), (21, 7677320), (24, 6717655), (28, 5757990), (30, 5374124), (35, 4606392), (40, 4030593), (42, 3838660), (49, 3290280), (56, 2878995), (60, 2687062), (70, 2303196), (84, 1919330), (98, 1645140), (105, 1535464), (120, 1343531), (140, 1151598), (147, 1096760), (168, 959665), (196, 822570), (210, 767732), (245, 658056), (280, 575799), (294, 548380), (343, 470040), (392, 411285), (420, 383866), (490, 329028), (588, 274190), (686, 235020), (735, 219352), (840, 191933), (980, 164514), (1029, 156680), (1176, 137095), (1372, 117510), (1470, 109676), (1715, 94008), (1960, 82257), (2058, 78340), (2744, 58755), (2940, 54838), (3430, 47004), (3917, 41160), (4116, 39170), (5145, 31336), (5880, 27419), (6860, 23502), (7834, 20580), (8232, 19585), (10290, 15668), (11751, 13720)]