28213744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 63745920

約数和(自身を除く): 35532176

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 79, 101, 104, 136, 158, 202, 208, 221, 272, 316, 404, 442, 632, 808, 884, 1027, 1264, 1313, 1343, 1616, 1717, 1768, 2054, 2626, 2686, 3434, 3536, 4108, 5252, 5372, 6868, 7979, 8216, 10504, 10744, 13736, 15958, 16432, 17459, 21008, 21488, 22321, 27472, 31916, 34918, 44642, 63832, 69836, 89284, 103727, 127664, 135643, 139672, 178568, 207454, 271286, 279344, 357136, 414908, 542572, 829816, 1085144, 1659632, 1763359, 2170288, 3526718, 7053436, 14106872, 28213744]

約数ペア:

[(1, 28213744), (2, 14106872), (4, 7053436), (8, 3526718), (13, 2170288), (16, 1763359), (17, 1659632), (26, 1085144), (34, 829816), (52, 542572), (68, 414908), (79, 357136), (101, 279344), (104, 271286), (136, 207454), (158, 178568), (202, 139672), (208, 135643), (221, 127664), (272, 103727), (316, 89284), (404, 69836), (442, 63832), (632, 44642), (808, 34918), (884, 31916), (1027, 27472), (1264, 22321), (1313, 21488), (1343, 21008), (1616, 17459), (1717, 16432), (1768, 15958), (2054, 13736), (2626, 10744), (2686, 10504), (3434, 8216), (3536, 7979), (4108, 6868), (5252, 5372)]