28937790

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 89994240

約数和(自身を除く): 61056450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 61, 63, 70, 90, 105, 122, 126, 135, 183, 189, 210, 251, 270, 305, 315, 366, 378, 427, 502, 549, 610, 630, 753, 854, 915, 945, 1098, 1255, 1281, 1506, 1647, 1757, 1830, 1890, 2135, 2259, 2510, 2562, 2745, 3294, 3514, 3765, 3843, 4270, 4518, 5271, 5490, 6405, 6777, 7530, 7686, 8235, 8785, 10542, 11295, 11529, 12810, 13554, 15311, 15813, 16470, 17570, 19215, 22590, 23058, 26355, 30622, 31626, 33885, 38430, 45933, 47439, 52710, 57645, 67770, 76555, 79065, 91866, 94878, 107177, 115290, 137799, 153110, 158130, 214354, 229665, 237195, 275598, 321531, 413397, 459330, 474390, 535885, 643062, 688995, 826794, 964593, 1071770, 1377990, 1607655, 1929186, 2066985, 2893779, 3215310, 4133970, 4822965, 5787558, 9645930, 14468895, 28937790]

約数ペア:

[(1, 28937790), (2, 14468895), (3, 9645930), (5, 5787558), (6, 4822965), (7, 4133970), (9, 3215310), (10, 2893779), (14, 2066985), (15, 1929186), (18, 1607655), (21, 1377990), (27, 1071770), (30, 964593), (35, 826794), (42, 688995), (45, 643062), (54, 535885), (61, 474390), (63, 459330), (70, 413397), (90, 321531), (105, 275598), (122, 237195), (126, 229665), (135, 214354), (183, 158130), (189, 153110), (210, 137799), (251, 115290), (270, 107177), (305, 94878), (315, 91866), (366, 79065), (378, 76555), (427, 67770), (502, 57645), (549, 52710), (610, 47439), (630, 45933), (753, 38430), (854, 33885), (915, 31626), (945, 30622), (1098, 26355), (1255, 23058), (1281, 22590), (1506, 19215), (1647, 17570), (1757, 16470), (1830, 15813), (1890, 15311), (2135, 13554), (2259, 12810), (2510, 11529), (2562, 11295), (2745, 10542), (3294, 8785), (3514, 8235), (3765, 7686), (3843, 7530), (4270, 6777), (4518, 6405), (5271, 5490)]