28073916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 77051520

約数和(自身を除く): 48977604

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 223, 234, 269, 446, 468, 538, 669, 807, 892, 1076, 1338, 1614, 2007, 2421, 2676, 2899, 3228, 3497, 4014, 4842, 5798, 6994, 8028, 8697, 9684, 10491, 11596, 13988, 17394, 20982, 26091, 31473, 34788, 41964, 52182, 59987, 62946, 104364, 119974, 125892, 179961, 239948, 359922, 539883, 719844, 779831, 1079766, 1559662, 2159532, 2339493, 3119324, 4678986, 7018479, 9357972, 14036958, 28073916]

約数ペア:

[(1, 28073916), (2, 14036958), (3, 9357972), (4, 7018479), (6, 4678986), (9, 3119324), (12, 2339493), (13, 2159532), (18, 1559662), (26, 1079766), (36, 779831), (39, 719844), (52, 539883), (78, 359922), (117, 239948), (156, 179961), (223, 125892), (234, 119974), (269, 104364), (446, 62946), (468, 59987), (538, 52182), (669, 41964), (807, 34788), (892, 31473), (1076, 26091), (1338, 20982), (1614, 17394), (2007, 13988), (2421, 11596), (2676, 10491), (2899, 9684), (3228, 8697), (3497, 8028), (4014, 6994), (4842, 5798)]