19930120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 55987200

約数和(自身を除く): 36057080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 53, 56, 68, 70, 79, 85, 106, 119, 136, 140, 158, 170, 212, 238, 265, 280, 316, 340, 371, 395, 424, 476, 530, 553, 595, 632, 680, 742, 790, 901, 952, 1060, 1106, 1190, 1343, 1484, 1580, 1802, 1855, 2120, 2212, 2380, 2686, 2765, 2968, 3160, 3604, 3710, 4187, 4424, 4505, 4760, 5372, 5530, 6307, 6715, 7208, 7420, 8374, 9010, 9401, 10744, 11060, 12614, 13430, 14840, 16748, 18020, 18802, 20935, 22120, 25228, 26860, 29309, 31535, 33496, 36040, 37604, 41870, 47005, 50456, 53720, 58618, 63070, 71179, 75208, 83740, 94010, 117236, 126140, 142358, 146545, 167480, 188020, 234472, 252280, 284716, 293090, 355895, 376040, 498253, 569432, 586180, 711790, 996506, 1172360, 1423580, 1993012, 2491265, 2847160, 3986024, 4982530, 9965060, 19930120]

約数ペア:

[(1, 19930120), (2, 9965060), (4, 4982530), (5, 3986024), (7, 2847160), (8, 2491265), (10, 1993012), (14, 1423580), (17, 1172360), (20, 996506), (28, 711790), (34, 586180), (35, 569432), (40, 498253), (53, 376040), (56, 355895), (68, 293090), (70, 284716), (79, 252280), (85, 234472), (106, 188020), (119, 167480), (136, 146545), (140, 142358), (158, 126140), (170, 117236), (212, 94010), (238, 83740), (265, 75208), (280, 71179), (316, 63070), (340, 58618), (371, 53720), (395, 50456), (424, 47005), (476, 41870), (530, 37604), (553, 36040), (595, 33496), (632, 31535), (680, 29309), (742, 26860), (790, 25228), (901, 22120), (952, 20935), (1060, 18802), (1106, 18020), (1190, 16748), (1343, 14840), (1484, 13430), (1580, 12614), (1802, 11060), (1855, 10744), (2120, 9401), (2212, 9010), (2380, 8374), (2686, 7420), (2765, 7208), (2968, 6715), (3160, 6307), (3604, 5530), (3710, 5372), (4187, 4760), (4424, 4505)]