20123866910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1\times {\mathrm{809}}^1$

素因数の和:1218

約数の個数: 128

約数和(自身を含む): 44509824000

約数和(自身を除く): 24385957090

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 59, 70, 95, 118, 133, 190, 266, 295, 317, 413, 590, 634, 665, 809, 826, 1121, 1330, 1585, 1618, 2065, 2219, 2242, 3170, 4045, 4130, 4438, 5605, 5663, 6023, 7847, 8090, 11095, 11210, 11326, 12046, 15371, 15694, 18703, 22190, 28315, 30115, 30742, 37406, 39235, 42161, 47731, 56630, 60230, 76855, 78470, 84322, 93515, 95462, 107597, 130921, 153710, 187030, 210805, 215194, 238655, 256453, 261842, 334117, 355357, 421610, 477310, 512906, 537985, 654605, 668234, 710714, 906889, 1075970, 1282265, 1309210, 1670585, 1776785, 1795171, 1813778, 2487499, 2564530, 3341170, 3553570, 3590342, 4534445, 4872607, 4974998, 6348223, 8975855, 9068890, 9745214, 12437495, 12696446, 15130727, 17951710, 24363035, 24874990, 30261454, 31741115, 34108249, 48726070, 63482230, 68216498, 75653635, 105915089, 151307270, 170541245, 211830178, 287483813, 341082490, 529575445, 574967626, 1059150890, 1437419065, 2012386691, 2874838130, 4024773382, 10061933455, 20123866910]

約数ペア:

[(1, 20123866910), (2, 10061933455), (5, 4024773382), (7, 2874838130), (10, 2012386691), (14, 1437419065), (19, 1059150890), (35, 574967626), (38, 529575445), (59, 341082490), (70, 287483813), (95, 211830178), (118, 170541245), (133, 151307270), (190, 105915089), (266, 75653635), (295, 68216498), (317, 63482230), (413, 48726070), (590, 34108249), (634, 31741115), (665, 30261454), (809, 24874990), (826, 24363035), (1121, 17951710), (1330, 15130727), (1585, 12696446), (1618, 12437495), (2065, 9745214), (2219, 9068890), (2242, 8975855), (3170, 6348223), (4045, 4974998), (4130, 4872607), (4438, 4534445), (5605, 3590342), (5663, 3553570), (6023, 3341170), (7847, 2564530), (8090, 2487499), (11095, 1813778), (11210, 1795171), (11326, 1776785), (12046, 1670585), (15371, 1309210), (15694, 1282265), (18703, 1075970), (22190, 906889), (28315, 710714), (30115, 668234), (30742, 654605), (37406, 537985), (39235, 512906), (42161, 477310), (47731, 421610), (56630, 355357), (60230, 334117), (76855, 261842), (78470, 256453), (84322, 238655), (93515, 215194), (95462, 210805), (107597, 187030), (130921, 153710)]