30988240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:117

約数の個数: 120

約数和(自身を含む): 80787240

約数和(自身を除く): 49799000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 37, 38, 40, 58, 74, 76, 80, 95, 116, 145, 148, 152, 185, 190, 232, 290, 296, 304, 361, 370, 380, 464, 551, 580, 592, 703, 722, 740, 760, 1073, 1102, 1160, 1406, 1444, 1480, 1520, 1805, 2146, 2204, 2320, 2755, 2812, 2888, 2960, 3515, 3610, 4292, 4408, 5365, 5510, 5624, 5776, 7030, 7220, 8584, 8816, 10469, 10730, 11020, 11248, 13357, 14060, 14440, 17168, 20387, 20938, 21460, 22040, 26714, 28120, 28880, 40774, 41876, 42920, 44080, 52345, 53428, 56240, 66785, 81548, 83752, 85840, 101935, 104690, 106856, 133570, 163096, 167504, 203870, 209380, 213712, 267140, 326192, 387353, 407740, 418760, 534280, 774706, 815480, 837520, 1068560, 1549412, 1630960, 1936765, 3098824, 3873530, 6197648, 7747060, 15494120, 30988240]

約数ペア:

[(1, 30988240), (2, 15494120), (4, 7747060), (5, 6197648), (8, 3873530), (10, 3098824), (16, 1936765), (19, 1630960), (20, 1549412), (29, 1068560), (37, 837520), (38, 815480), (40, 774706), (58, 534280), (74, 418760), (76, 407740), (80, 387353), (95, 326192), (116, 267140), (145, 213712), (148, 209380), (152, 203870), (185, 167504), (190, 163096), (232, 133570), (290, 106856), (296, 104690), (304, 101935), (361, 85840), (370, 83752), (380, 81548), (464, 66785), (551, 56240), (580, 53428), (592, 52345), (703, 44080), (722, 42920), (740, 41876), (760, 40774), (1073, 28880), (1102, 28120), (1160, 26714), (1406, 22040), (1444, 21460), (1480, 20938), (1520, 20387), (1805, 17168), (2146, 14440), (2204, 14060), (2320, 13357), (2755, 11248), (2812, 11020), (2888, 10730), (2960, 10469), (3515, 8816), (3610, 8584), (4292, 7220), (4408, 7030), (5365, 5776), (5510, 5624)]