89643320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 230307840

約数和(自身を除く): 140664520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 67, 83, 104, 124, 130, 134, 155, 166, 248, 260, 268, 310, 332, 335, 403, 415, 520, 536, 620, 664, 670, 806, 830, 871, 1079, 1240, 1340, 1612, 1660, 1742, 2015, 2077, 2158, 2573, 2680, 3224, 3320, 3484, 4030, 4154, 4316, 4355, 5146, 5395, 5561, 6968, 8060, 8308, 8632, 8710, 10292, 10385, 10790, 11122, 12865, 16120, 16616, 17420, 20584, 20770, 21580, 22244, 25730, 27001, 27805, 33449, 34840, 41540, 43160, 44488, 51460, 54002, 55610, 66898, 72293, 83080, 102920, 108004, 111220, 133796, 135005, 144586, 167245, 172391, 216008, 222440, 267592, 270010, 289172, 334490, 344782, 361465, 540020, 578344, 668980, 689564, 722930, 861955, 1080040, 1337960, 1379128, 1445860, 1723910, 2241083, 2891720, 3447820, 4482166, 6895640, 8964332, 11205415, 17928664, 22410830, 44821660, 89643320]

約数ペア:

[(1, 89643320), (2, 44821660), (4, 22410830), (5, 17928664), (8, 11205415), (10, 8964332), (13, 6895640), (20, 4482166), (26, 3447820), (31, 2891720), (40, 2241083), (52, 1723910), (62, 1445860), (65, 1379128), (67, 1337960), (83, 1080040), (104, 861955), (124, 722930), (130, 689564), (134, 668980), (155, 578344), (166, 540020), (248, 361465), (260, 344782), (268, 334490), (310, 289172), (332, 270010), (335, 267592), (403, 222440), (415, 216008), (520, 172391), (536, 167245), (620, 144586), (664, 135005), (670, 133796), (806, 111220), (830, 108004), (871, 102920), (1079, 83080), (1240, 72293), (1340, 66898), (1612, 55610), (1660, 54002), (1742, 51460), (2015, 44488), (2077, 43160), (2158, 41540), (2573, 34840), (2680, 33449), (3224, 27805), (3320, 27001), (3484, 25730), (4030, 22244), (4154, 21580), (4316, 20770), (4355, 20584), (5146, 17420), (5395, 16616), (5561, 16120), (6968, 12865), (8060, 11122), (8308, 10790), (8632, 10385), (8710, 10292)]