20858149320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{237781}}^1$

素因数の和:237855

約数の個数: 128

約数和(自身を含む): 67796403840

約数和(自身を除く): 46938254520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 255, 258, 340, 344, 408, 430, 510, 516, 645, 680, 731, 860, 1020, 1032, 1290, 1462, 1720, 2040, 2193, 2580, 2924, 3655, 4386, 5160, 5848, 7310, 8772, 10965, 14620, 17544, 21930, 29240, 43860, 87720, 237781, 475562, 713343, 951124, 1188905, 1426686, 1902248, 2377810, 2853372, 3566715, 4042277, 4755620, 5706744, 7133430, 8084554, 9511240, 10224583, 12126831, 14266860, 16169108, 20211385, 20449166, 24253662, 28533720, 30673749, 32338216, 40422770, 40898332, 48507324, 51122915, 60634155, 61347498, 80845540, 81796664, 97014648, 102245830, 121268310, 122694996, 153368745, 161691080, 173817911, 204491660, 242536620, 245389992, 306737490, 347635822, 408983320, 485073240, 521453733, 613474980, 695271644, 869089555, 1042907466, 1226949960, 1390543288, 1738179110, 2085814932, 2607268665, 3476358220, 4171629864, 5214537330, 6952716440, 10429074660, 20858149320]

約数ペア:

[(1, 20858149320), (2, 10429074660), (3, 6952716440), (4, 5214537330), (5, 4171629864), (6, 3476358220), (8, 2607268665), (10, 2085814932), (12, 1738179110), (15, 1390543288), (17, 1226949960), (20, 1042907466), (24, 869089555), (30, 695271644), (34, 613474980), (40, 521453733), (43, 485073240), (51, 408983320), (60, 347635822), (68, 306737490), (85, 245389992), (86, 242536620), (102, 204491660), (120, 173817911), (129, 161691080), (136, 153368745), (170, 122694996), (172, 121268310), (204, 102245830), (215, 97014648), (255, 81796664), (258, 80845540), (340, 61347498), (344, 60634155), (408, 51122915), (430, 48507324), (510, 40898332), (516, 40422770), (645, 32338216), (680, 30673749), (731, 28533720), (860, 24253662), (1020, 20449166), (1032, 20211385), (1290, 16169108), (1462, 14266860), (1720, 12126831), (2040, 10224583), (2193, 9511240), (2580, 8084554), (2924, 7133430), (3655, 5706744), (4386, 4755620), (5160, 4042277), (5848, 3566715), (7310, 2853372), (8772, 2377810), (10965, 1902248), (14620, 1426686), (17544, 1188905), (21930, 951124), (29240, 713343), (43860, 475562), (87720, 237781)]