28474460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 73543680

約数和(自身を除く): 45069220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 70, 74, 92, 115, 140, 148, 161, 185, 230, 239, 259, 322, 370, 460, 478, 518, 644, 740, 805, 851, 956, 1036, 1195, 1295, 1610, 1673, 1702, 2390, 2590, 3220, 3346, 3404, 4255, 4780, 5180, 5497, 5957, 6692, 8365, 8510, 8843, 10994, 11914, 16730, 17020, 17686, 21988, 23828, 27485, 29785, 33460, 35372, 38479, 44215, 54970, 59570, 61901, 76958, 88430, 109940, 119140, 123802, 153916, 176860, 192395, 203389, 247604, 309505, 384790, 406778, 619010, 769580, 813556, 1016945, 1238020, 1423723, 2033890, 2847446, 4067780, 5694892, 7118615, 14237230, 28474460]

約数ペア:

[(1, 28474460), (2, 14237230), (4, 7118615), (5, 5694892), (7, 4067780), (10, 2847446), (14, 2033890), (20, 1423723), (23, 1238020), (28, 1016945), (35, 813556), (37, 769580), (46, 619010), (70, 406778), (74, 384790), (92, 309505), (115, 247604), (140, 203389), (148, 192395), (161, 176860), (185, 153916), (230, 123802), (239, 119140), (259, 109940), (322, 88430), (370, 76958), (460, 61901), (478, 59570), (518, 54970), (644, 44215), (740, 38479), (805, 35372), (851, 33460), (956, 29785), (1036, 27485), (1195, 23828), (1295, 21988), (1610, 17686), (1673, 17020), (1702, 16730), (2390, 11914), (2590, 10994), (3220, 8843), (3346, 8510), (3404, 8365), (4255, 6692), (4780, 5957), (5180, 5497)]