128964220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 356073984

約数和(自身を除く): 227109764

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 121, 140, 154, 161, 220, 230, 242, 253, 308, 322, 331, 385, 460, 484, 506, 605, 644, 662, 770, 805, 847, 1012, 1210, 1265, 1324, 1540, 1610, 1655, 1694, 1771, 2317, 2420, 2530, 2783, 3220, 3310, 3388, 3542, 3641, 4235, 4634, 5060, 5566, 6620, 7084, 7282, 7613, 8470, 8855, 9268, 11132, 11585, 13915, 14564, 15226, 16940, 17710, 18205, 19481, 23170, 25487, 27830, 30452, 35420, 36410, 38065, 38962, 40051, 46340, 50974, 53291, 55660, 72820, 76130, 77924, 80102, 83743, 97405, 101948, 106582, 127435, 152260, 160204, 167486, 194810, 200255, 213164, 254870, 266455, 280357, 334972, 389620, 400510, 418715, 509740, 532910, 560714, 586201, 801020, 837430, 921173, 1065820, 1121428, 1172402, 1401785, 1674860, 1842346, 2344804, 2803570, 2931005, 3684692, 4605865, 5607140, 5862010, 6448211, 9211730, 11724020, 12896422, 18423460, 25792844, 32241055, 64482110, 128964220]

約数ペア:

[(1, 128964220), (2, 64482110), (4, 32241055), (5, 25792844), (7, 18423460), (10, 12896422), (11, 11724020), (14, 9211730), (20, 6448211), (22, 5862010), (23, 5607140), (28, 4605865), (35, 3684692), (44, 2931005), (46, 2803570), (55, 2344804), (70, 1842346), (77, 1674860), (92, 1401785), (110, 1172402), (115, 1121428), (121, 1065820), (140, 921173), (154, 837430), (161, 801020), (220, 586201), (230, 560714), (242, 532910), (253, 509740), (308, 418715), (322, 400510), (331, 389620), (385, 334972), (460, 280357), (484, 266455), (506, 254870), (605, 213164), (644, 200255), (662, 194810), (770, 167486), (805, 160204), (847, 152260), (1012, 127435), (1210, 106582), (1265, 101948), (1324, 97405), (1540, 83743), (1610, 80102), (1655, 77924), (1694, 76130), (1771, 72820), (2317, 55660), (2420, 53291), (2530, 50974), (2783, 46340), (3220, 40051), (3310, 38962), (3388, 38065), (3542, 36410), (3641, 35420), (4235, 30452), (4634, 27830), (5060, 25487), (5566, 23170), (6620, 19481), (7084, 18205), (7282, 17710), (7613, 16940), (8470, 15226), (8855, 14564), (9268, 13915), (11132, 11585)]