31814820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:350

約数の個数: 144

約数和(自身を含む): 105316848

約数和(自身を除く): 73502028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 37, 45, 51, 60, 68, 74, 85, 90, 102, 111, 148, 153, 170, 180, 185, 204, 222, 255, 281, 306, 333, 340, 370, 444, 510, 555, 562, 612, 629, 666, 740, 765, 843, 1020, 1110, 1124, 1258, 1332, 1405, 1530, 1665, 1686, 1887, 2220, 2516, 2529, 2810, 3060, 3145, 3330, 3372, 3774, 4215, 4777, 5058, 5620, 5661, 6290, 6660, 7548, 8430, 9435, 9554, 10116, 10397, 11322, 12580, 12645, 14331, 16860, 18870, 19108, 20794, 22644, 23885, 25290, 28305, 28662, 31191, 37740, 41588, 42993, 47770, 50580, 51985, 56610, 57324, 62382, 71655, 85986, 93573, 95540, 103970, 113220, 124764, 143310, 155955, 171972, 176749, 187146, 207940, 214965, 286620, 311910, 353498, 374292, 429930, 467865, 530247, 623820, 706996, 859860, 883745, 935730, 1060494, 1590741, 1767490, 1871460, 2120988, 2651235, 3181482, 3534980, 5302470, 6362964, 7953705, 10604940, 15907410, 31814820]

約数ペア:

[(1, 31814820), (2, 15907410), (3, 10604940), (4, 7953705), (5, 6362964), (6, 5302470), (9, 3534980), (10, 3181482), (12, 2651235), (15, 2120988), (17, 1871460), (18, 1767490), (20, 1590741), (30, 1060494), (34, 935730), (36, 883745), (37, 859860), (45, 706996), (51, 623820), (60, 530247), (68, 467865), (74, 429930), (85, 374292), (90, 353498), (102, 311910), (111, 286620), (148, 214965), (153, 207940), (170, 187146), (180, 176749), (185, 171972), (204, 155955), (222, 143310), (255, 124764), (281, 113220), (306, 103970), (333, 95540), (340, 93573), (370, 85986), (444, 71655), (510, 62382), (555, 57324), (562, 56610), (612, 51985), (629, 50580), (666, 47770), (740, 42993), (765, 41588), (843, 37740), (1020, 31191), (1110, 28662), (1124, 28305), (1258, 25290), (1332, 23885), (1405, 22644), (1530, 20794), (1665, 19108), (1686, 18870), (1887, 16860), (2220, 14331), (2516, 12645), (2529, 12580), (2810, 11322), (3060, 10397), (3145, 10116), (3330, 9554), (3372, 9435), (3774, 8430), (4215, 7548), (4777, 6660), (5058, 6290), (5620, 5661)]