20120457942

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:1147

約数の個数: 128

約数和(自身を含む): 48739299840

約数和(自身を除く): 28618841898

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 131, 234, 262, 331, 351, 393, 661, 662, 702, 786, 993, 1179, 1322, 1703, 1983, 1986, 2358, 2979, 3406, 3537, 3966, 4303, 5109, 5949, 5958, 7074, 8593, 8606, 8937, 10218, 11898, 12909, 15327, 17186, 17847, 17874, 25779, 25818, 30654, 35694, 38727, 43361, 45981, 51558, 77337, 77454, 86591, 86722, 91962, 116181, 130083, 154674, 173182, 218791, 232011, 232362, 259773, 260166, 390249, 437582, 464022, 519546, 563693, 656373, 779319, 780498, 1125683, 1127386, 1170747, 1312746, 1558638, 1691079, 1969119, 2251366, 2337957, 2341494, 2844283, 3377049, 3382158, 3938238, 4675914, 5073237, 5688566, 5907357, 6754098, 8532849, 10131147, 10146474, 11814714, 15219711, 17065698, 20262294, 25598547, 28661621, 30393441, 30439422, 51197094, 57323242, 60786882, 76795641, 85984863, 153591282, 171969726, 257954589, 372601073, 515909178, 745202146, 773863767, 1117803219, 1547727534, 2235606438, 3353409657, 6706819314, 10060228971, 20120457942]

約数ペア:

[(1, 20120457942), (2, 10060228971), (3, 6706819314), (6, 3353409657), (9, 2235606438), (13, 1547727534), (18, 1117803219), (26, 773863767), (27, 745202146), (39, 515909178), (54, 372601073), (78, 257954589), (117, 171969726), (131, 153591282), (234, 85984863), (262, 76795641), (331, 60786882), (351, 57323242), (393, 51197094), (661, 30439422), (662, 30393441), (702, 28661621), (786, 25598547), (993, 20262294), (1179, 17065698), (1322, 15219711), (1703, 11814714), (1983, 10146474), (1986, 10131147), (2358, 8532849), (2979, 6754098), (3406, 5907357), (3537, 5688566), (3966, 5073237), (4303, 4675914), (5109, 3938238), (5949, 3382158), (5958, 3377049), (7074, 2844283), (8593, 2341494), (8606, 2337957), (8937, 2251366), (10218, 1969119), (11898, 1691079), (12909, 1558638), (15327, 1312746), (17186, 1170747), (17847, 1127386), (17874, 1125683), (25779, 780498), (25818, 779319), (30654, 656373), (35694, 563693), (38727, 519546), (43361, 464022), (45981, 437582), (51558, 390249), (77337, 260166), (77454, 259773), (86591, 232362), (86722, 232011), (91962, 218791), (116181, 173182), (130083, 154674)]