651344720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:373

約数の個数: 160

約数和(自身を含む): 1709890560

約数和(自身を除く): 1058545840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 89, 104, 124, 130, 155, 178, 208, 227, 248, 260, 310, 356, 403, 445, 454, 496, 520, 620, 712, 806, 890, 908, 1040, 1135, 1157, 1240, 1424, 1612, 1780, 1816, 2015, 2270, 2314, 2480, 2759, 2951, 3224, 3560, 3632, 4030, 4540, 4628, 5518, 5785, 5902, 6448, 7037, 7120, 8060, 9080, 9256, 11036, 11570, 11804, 13795, 14074, 14755, 16120, 18160, 18512, 20203, 22072, 23140, 23608, 27590, 28148, 29510, 32240, 35185, 35867, 40406, 44144, 46280, 47216, 55180, 56296, 59020, 70370, 71734, 80812, 91481, 92560, 101015, 110360, 112592, 118040, 140740, 143468, 161624, 179335, 182962, 202030, 220720, 236080, 262639, 281480, 286936, 323248, 358670, 365924, 404060, 457405, 525278, 562960, 573872, 626293, 717340, 731848, 808120, 914810, 1050556, 1252586, 1313195, 1434680, 1463696, 1616240, 1829620, 2101112, 2505172, 2626390, 2869360, 3131465, 3659240, 4202224, 5010344, 5252780, 6262930, 7318480, 8141809, 10020688, 10505560, 12525860, 16283618, 21011120, 25051720, 32567236, 40709045, 50103440, 65134472, 81418090, 130268944, 162836180, 325672360, 651344720]

約数ペア:

[(1, 651344720), (2, 325672360), (4, 162836180), (5, 130268944), (8, 81418090), (10, 65134472), (13, 50103440), (16, 40709045), (20, 32567236), (26, 25051720), (31, 21011120), (40, 16283618), (52, 12525860), (62, 10505560), (65, 10020688), (80, 8141809), (89, 7318480), (104, 6262930), (124, 5252780), (130, 5010344), (155, 4202224), (178, 3659240), (208, 3131465), (227, 2869360), (248, 2626390), (260, 2505172), (310, 2101112), (356, 1829620), (403, 1616240), (445, 1463696), (454, 1434680), (496, 1313195), (520, 1252586), (620, 1050556), (712, 914810), (806, 808120), (890, 731848), (908, 717340), (1040, 626293), (1135, 573872), (1157, 562960), (1240, 525278), (1424, 457405), (1612, 404060), (1780, 365924), (1816, 358670), (2015, 323248), (2270, 286936), (2314, 281480), (2480, 262639), (2759, 236080), (2951, 220720), (3224, 202030), (3560, 182962), (3632, 179335), (4030, 161624), (4540, 143468), (4628, 140740), (5518, 118040), (5785, 112592), (5902, 110360), (6448, 101015), (7037, 92560), (7120, 91481), (8060, 80812), (9080, 71734), (9256, 70370), (11036, 59020), (11570, 56296), (11804, 55180), (13795, 47216), (14074, 46280), (14755, 44144), (16120, 40406), (18160, 35867), (18512, 35185), (20203, 32240), (22072, 29510), (23140, 28148), (23608, 27590)]