28177275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 53710848

約数和(自身を除く): 25533573

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 191, 281, 525, 573, 843, 955, 1337, 1405, 1967, 2865, 4011, 4215, 4775, 5901, 6685, 7025, 9835, 14325, 20055, 21075, 29505, 33425, 49175, 53671, 100275, 147525, 161013, 268355, 375697, 805065, 1127091, 1341775, 1878485, 4025325, 5635455, 9392425, 28177275]

約数ペア:

[(1, 28177275), (3, 9392425), (5, 5635455), (7, 4025325), (15, 1878485), (21, 1341775), (25, 1127091), (35, 805065), (75, 375697), (105, 268355), (175, 161013), (191, 147525), (281, 100275), (525, 53671), (573, 49175), (843, 33425), (955, 29505), (1337, 21075), (1405, 20055), (1967, 14325), (2865, 9835), (4011, 7025), (4215, 6685), (4775, 5901)]