28745860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:98

約数の個数: 144

約数和(自身を含む): 78039360

約数和(自身を除く): 49293500

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 23, 26, 38, 44, 46, 52, 55, 65, 76, 92, 95, 110, 115, 130, 143, 190, 209, 220, 230, 247, 253, 260, 286, 299, 380, 418, 437, 460, 494, 506, 529, 572, 598, 715, 836, 874, 988, 1012, 1045, 1058, 1196, 1235, 1265, 1430, 1495, 1748, 2090, 2116, 2185, 2470, 2530, 2645, 2717, 2860, 2990, 3289, 4180, 4370, 4807, 4940, 5060, 5290, 5434, 5681, 5819, 5980, 6578, 6877, 8740, 9614, 10051, 10580, 10868, 11362, 11638, 13156, 13585, 13754, 16445, 19228, 20102, 22724, 23276, 24035, 27170, 27508, 28405, 29095, 32890, 34385, 40204, 48070, 50255, 54340, 56810, 58190, 62491, 65780, 68770, 75647, 96140, 100510, 110561, 113620, 116380, 124982, 130663, 137540, 151294, 201020, 221122, 249964, 261326, 302588, 312455, 378235, 442244, 522652, 552805, 624910, 653315, 756470, 1105610, 1249820, 1306630, 1437293, 1512940, 2211220, 2613260, 2874586, 5749172, 7186465, 14372930, 28745860]

約数ペア:

[(1, 28745860), (2, 14372930), (4, 7186465), (5, 5749172), (10, 2874586), (11, 2613260), (13, 2211220), (19, 1512940), (20, 1437293), (22, 1306630), (23, 1249820), (26, 1105610), (38, 756470), (44, 653315), (46, 624910), (52, 552805), (55, 522652), (65, 442244), (76, 378235), (92, 312455), (95, 302588), (110, 261326), (115, 249964), (130, 221122), (143, 201020), (190, 151294), (209, 137540), (220, 130663), (230, 124982), (247, 116380), (253, 113620), (260, 110561), (286, 100510), (299, 96140), (380, 75647), (418, 68770), (437, 65780), (460, 62491), (494, 58190), (506, 56810), (529, 54340), (572, 50255), (598, 48070), (715, 40204), (836, 34385), (874, 32890), (988, 29095), (1012, 28405), (1045, 27508), (1058, 27170), (1196, 24035), (1235, 23276), (1265, 22724), (1430, 20102), (1495, 19228), (1748, 16445), (2090, 13754), (2116, 13585), (2185, 13156), (2470, 11638), (2530, 11362), (2645, 10868), (2717, 10580), (2860, 10051), (2990, 9614), (3289, 8740), (4180, 6877), (4370, 6578), (4807, 5980), (4940, 5819), (5060, 5681), (5290, 5434)]