19855920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:299

約数の個数: 160

約数和(自身を含む): 71995392

約数和(自身を除く): 52139472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 53, 56, 60, 70, 80, 84, 105, 106, 112, 120, 140, 159, 168, 210, 212, 223, 240, 265, 280, 318, 336, 371, 420, 424, 446, 530, 560, 636, 669, 742, 795, 840, 848, 892, 1060, 1113, 1115, 1272, 1338, 1484, 1561, 1590, 1680, 1784, 1855, 2120, 2226, 2230, 2544, 2676, 2968, 3122, 3180, 3345, 3568, 3710, 4240, 4452, 4460, 4683, 5352, 5565, 5936, 6244, 6360, 6690, 7420, 7805, 8904, 8920, 9366, 10704, 11130, 11819, 12488, 12720, 13380, 14840, 15610, 17808, 17840, 18732, 22260, 23415, 23638, 24976, 26760, 29680, 31220, 35457, 37464, 44520, 46830, 47276, 53520, 59095, 62440, 70914, 74928, 82733, 89040, 93660, 94552, 118190, 124880, 141828, 165466, 177285, 187320, 189104, 236380, 248199, 283656, 330932, 354570, 374640, 413665, 472760, 496398, 567312, 661864, 709140, 827330, 945520, 992796, 1240995, 1323728, 1418280, 1654660, 1985592, 2481990, 2836560, 3309320, 3971184, 4963980, 6618640, 9927960, 19855920]

約数ペア:

[(1, 19855920), (2, 9927960), (3, 6618640), (4, 4963980), (5, 3971184), (6, 3309320), (7, 2836560), (8, 2481990), (10, 1985592), (12, 1654660), (14, 1418280), (15, 1323728), (16, 1240995), (20, 992796), (21, 945520), (24, 827330), (28, 709140), (30, 661864), (35, 567312), (40, 496398), (42, 472760), (48, 413665), (53, 374640), (56, 354570), (60, 330932), (70, 283656), (80, 248199), (84, 236380), (105, 189104), (106, 187320), (112, 177285), (120, 165466), (140, 141828), (159, 124880), (168, 118190), (210, 94552), (212, 93660), (223, 89040), (240, 82733), (265, 74928), (280, 70914), (318, 62440), (336, 59095), (371, 53520), (420, 47276), (424, 46830), (446, 44520), (530, 37464), (560, 35457), (636, 31220), (669, 29680), (742, 26760), (795, 24976), (840, 23638), (848, 23415), (892, 22260), (1060, 18732), (1113, 17840), (1115, 17808), (1272, 15610), (1338, 14840), (1484, 13380), (1561, 12720), (1590, 12488), (1680, 11819), (1784, 11130), (1855, 10704), (2120, 9366), (2226, 8920), (2230, 8904), (2544, 7805), (2676, 7420), (2968, 6690), (3122, 6360), (3180, 6244), (3345, 5936), (3568, 5565), (3710, 5352), (4240, 4683), (4452, 4460)]