20724060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 51851940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 53, 57, 60, 70, 76, 84, 95, 98, 105, 106, 114, 133, 140, 147, 159, 190, 196, 210, 212, 228, 245, 265, 266, 285, 294, 318, 343, 371, 380, 399, 420, 490, 530, 532, 570, 588, 636, 665, 686, 735, 742, 795, 798, 931, 980, 1007, 1029, 1060, 1113, 1140, 1330, 1372, 1470, 1484, 1590, 1596, 1715, 1855, 1862, 1995, 2014, 2058, 2226, 2597, 2660, 2793, 2940, 3021, 3180, 3430, 3710, 3724, 3990, 4028, 4116, 4452, 4655, 5035, 5145, 5194, 5565, 5586, 6042, 6517, 6860, 7049, 7420, 7791, 7980, 9310, 10070, 10290, 10388, 11130, 11172, 12084, 12985, 13034, 13965, 14098, 15105, 15582, 18179, 18620, 19551, 20140, 20580, 21147, 22260, 25970, 26068, 27930, 28196, 30210, 31164, 32585, 35245, 36358, 38955, 39102, 42294, 49343, 51940, 54537, 55860, 60420, 65170, 70490, 72716, 77910, 78204, 84588, 90895, 97755, 98686, 105735, 109074, 130340, 140980, 148029, 155820, 181790, 195510, 197372, 211470, 218148, 246715, 272685, 296058, 345401, 363580, 391020, 422940, 493430, 545370, 592116, 690802, 740145, 986860, 1036203, 1090740, 1381604, 1480290, 1727005, 2072406, 2960580, 3454010, 4144812, 5181015, 6908020, 10362030, 20724060]

約数ペア:

[(1, 20724060), (2, 10362030), (3, 6908020), (4, 5181015), (5, 4144812), (6, 3454010), (7, 2960580), (10, 2072406), (12, 1727005), (14, 1480290), (15, 1381604), (19, 1090740), (20, 1036203), (21, 986860), (28, 740145), (30, 690802), (35, 592116), (38, 545370), (42, 493430), (49, 422940), (53, 391020), (57, 363580), (60, 345401), (70, 296058), (76, 272685), (84, 246715), (95, 218148), (98, 211470), (105, 197372), (106, 195510), (114, 181790), (133, 155820), (140, 148029), (147, 140980), (159, 130340), (190, 109074), (196, 105735), (210, 98686), (212, 97755), (228, 90895), (245, 84588), (265, 78204), (266, 77910), (285, 72716), (294, 70490), (318, 65170), (343, 60420), (371, 55860), (380, 54537), (399, 51940), (420, 49343), (490, 42294), (530, 39102), (532, 38955), (570, 36358), (588, 35245), (636, 32585), (665, 31164), (686, 30210), (735, 28196), (742, 27930), (795, 26068), (798, 25970), (931, 22260), (980, 21147), (1007, 20580), (1029, 20140), (1060, 19551), (1113, 18620), (1140, 18179), (1330, 15582), (1372, 15105), (1470, 14098), (1484, 13965), (1590, 13034), (1596, 12985), (1715, 12084), (1855, 11172), (1862, 11130), (1995, 10388), (2014, 10290), (2058, 10070), (2226, 9310), (2597, 7980), (2660, 7791), (2793, 7420), (2940, 7049), (3021, 6860), (3180, 6517), (3430, 6042), (3710, 5586), (3724, 5565), (3990, 5194), (4028, 5145), (4116, 5035), (4452, 4655)]