28879396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{359}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 66407040

約数和(自身を除く): 37527644

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 238, 338, 359, 364, 442, 476, 676, 718, 884, 1183, 1436, 1547, 2366, 2513, 2873, 3094, 4667, 4732, 5026, 5746, 6103, 6188, 9334, 10052, 11492, 12206, 18668, 20111, 24412, 32669, 40222, 42721, 60671, 65338, 79339, 80444, 85442, 121342, 130676, 158678, 170884, 242684, 317356, 424697, 555373, 849394, 1031407, 1110746, 1698788, 2062814, 2221492, 4125628, 7219849, 14439698, 28879396]

約数ペア:

[(1, 28879396), (2, 14439698), (4, 7219849), (7, 4125628), (13, 2221492), (14, 2062814), (17, 1698788), (26, 1110746), (28, 1031407), (34, 849394), (52, 555373), (68, 424697), (91, 317356), (119, 242684), (169, 170884), (182, 158678), (221, 130676), (238, 121342), (338, 85442), (359, 80444), (364, 79339), (442, 65338), (476, 60671), (676, 42721), (718, 40222), (884, 32669), (1183, 24412), (1436, 20111), (1547, 18668), (2366, 12206), (2513, 11492), (2873, 10052), (3094, 9334), (4667, 6188), (4732, 6103), (5026, 5746)]