28961010

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 128

約数和(自身を含む): 85800960

約数和(自身を除く): 56839950

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 37, 39, 45, 54, 65, 74, 78, 90, 111, 117, 130, 135, 185, 195, 222, 223, 234, 270, 333, 351, 370, 390, 446, 481, 555, 585, 666, 669, 702, 962, 999, 1110, 1115, 1170, 1338, 1443, 1665, 1755, 1998, 2007, 2230, 2405, 2886, 2899, 3330, 3345, 3510, 4014, 4329, 4810, 4995, 5798, 6021, 6690, 7215, 8251, 8658, 8697, 9990, 10035, 12042, 12987, 14430, 14495, 16502, 17394, 20070, 21645, 24753, 25974, 26091, 28990, 30105, 41255, 43290, 43485, 49506, 52182, 60210, 64935, 74259, 78273, 82510, 86970, 107263, 123765, 129870, 130455, 148518, 156546, 214526, 222777, 247530, 260910, 321789, 371295, 391365, 445554, 536315, 643578, 742590, 782730, 965367, 1072630, 1113885, 1608945, 1930734, 2227770, 2896101, 3217890, 4826835, 5792202, 9653670, 14480505, 28961010]

約数ペア:

[(1, 28961010), (2, 14480505), (3, 9653670), (5, 5792202), (6, 4826835), (9, 3217890), (10, 2896101), (13, 2227770), (15, 1930734), (18, 1608945), (26, 1113885), (27, 1072630), (30, 965367), (37, 782730), (39, 742590), (45, 643578), (54, 536315), (65, 445554), (74, 391365), (78, 371295), (90, 321789), (111, 260910), (117, 247530), (130, 222777), (135, 214526), (185, 156546), (195, 148518), (222, 130455), (223, 129870), (234, 123765), (270, 107263), (333, 86970), (351, 82510), (370, 78273), (390, 74259), (446, 64935), (481, 60210), (555, 52182), (585, 49506), (666, 43485), (669, 43290), (702, 41255), (962, 30105), (999, 28990), (1110, 26091), (1115, 25974), (1170, 24753), (1338, 21645), (1443, 20070), (1665, 17394), (1755, 16502), (1998, 14495), (2007, 14430), (2230, 12987), (2405, 12042), (2886, 10035), (2899, 9990), (3330, 8697), (3345, 8658), (3510, 8251), (4014, 7215), (4329, 6690), (4810, 6021), (4995, 5798)]