209633840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^2$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 557933040

約数和(自身を除く): 348299200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 103, 104, 130, 152, 190, 206, 208, 247, 260, 304, 380, 412, 494, 515, 520, 760, 824, 988, 1030, 1040, 1235, 1339, 1520, 1648, 1957, 1976, 2060, 2470, 2678, 3914, 3952, 4120, 4940, 5356, 6695, 7828, 8240, 9785, 9880, 10609, 10712, 13390, 15656, 19570, 19760, 21218, 21424, 25441, 26780, 31312, 39140, 42436, 50882, 53045, 53560, 78280, 84872, 101764, 106090, 107120, 127205, 137917, 156560, 169744, 201571, 203528, 212180, 254410, 275834, 403142, 407056, 424360, 508820, 551668, 689585, 806284, 848720, 1007855, 1017640, 1103336, 1379170, 1612568, 2015710, 2035280, 2206672, 2620423, 2758340, 3225136, 4031420, 5240846, 5516680, 8062840, 10481692, 11033360, 13102115, 16125680, 20963384, 26204230, 41926768, 52408460, 104816920, 209633840]

約数ペア:

[(1, 209633840), (2, 104816920), (4, 52408460), (5, 41926768), (8, 26204230), (10, 20963384), (13, 16125680), (16, 13102115), (19, 11033360), (20, 10481692), (26, 8062840), (38, 5516680), (40, 5240846), (52, 4031420), (65, 3225136), (76, 2758340), (80, 2620423), (95, 2206672), (103, 2035280), (104, 2015710), (130, 1612568), (152, 1379170), (190, 1103336), (206, 1017640), (208, 1007855), (247, 848720), (260, 806284), (304, 689585), (380, 551668), (412, 508820), (494, 424360), (515, 407056), (520, 403142), (760, 275834), (824, 254410), (988, 212180), (1030, 203528), (1040, 201571), (1235, 169744), (1339, 156560), (1520, 137917), (1648, 127205), (1957, 107120), (1976, 106090), (2060, 101764), (2470, 84872), (2678, 78280), (3914, 53560), (3952, 53045), (4120, 50882), (4940, 42436), (5356, 39140), (6695, 31312), (7828, 26780), (8240, 25441), (9785, 21424), (9880, 21218), (10609, 19760), (10712, 19570), (13390, 15656)]