687428720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:391

約数の個数: 160

約数和(自身を含む): 1823883264

約数和(自身を除く): 1136454544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 113, 124, 155, 176, 220, 223, 226, 248, 310, 341, 440, 446, 452, 496, 565, 620, 682, 880, 892, 904, 1115, 1130, 1240, 1243, 1364, 1705, 1784, 1808, 2230, 2260, 2453, 2480, 2486, 2728, 3410, 3503, 3568, 4460, 4520, 4906, 4972, 5456, 6215, 6820, 6913, 7006, 8920, 9040, 9812, 9944, 12265, 12430, 13640, 13826, 14012, 17515, 17840, 19624, 19888, 24530, 24860, 25199, 27280, 27652, 28024, 34565, 35030, 38533, 39248, 49060, 49720, 50398, 55304, 56048, 69130, 70060, 76043, 77066, 98120, 99440, 100796, 110608, 125995, 138260, 140120, 152086, 154132, 192665, 196240, 201592, 251990, 276520, 277189, 280240, 304172, 308264, 380215, 385330, 403184, 503980, 553040, 554378, 608344, 616528, 760430, 770660, 781169, 1007960, 1108756, 1216688, 1385945, 1520860, 1541320, 1562338, 2015920, 2217512, 2771890, 3041720, 3082640, 3124676, 3905845, 4435024, 5543780, 6083440, 6249352, 7811690, 8592859, 11087560, 12498704, 15623380, 17185718, 22175120, 31246760, 34371436, 42964295, 62493520, 68742872, 85928590, 137485744, 171857180, 343714360, 687428720]

約数ペア:

[(1, 687428720), (2, 343714360), (4, 171857180), (5, 137485744), (8, 85928590), (10, 68742872), (11, 62493520), (16, 42964295), (20, 34371436), (22, 31246760), (31, 22175120), (40, 17185718), (44, 15623380), (55, 12498704), (62, 11087560), (80, 8592859), (88, 7811690), (110, 6249352), (113, 6083440), (124, 5543780), (155, 4435024), (176, 3905845), (220, 3124676), (223, 3082640), (226, 3041720), (248, 2771890), (310, 2217512), (341, 2015920), (440, 1562338), (446, 1541320), (452, 1520860), (496, 1385945), (565, 1216688), (620, 1108756), (682, 1007960), (880, 781169), (892, 770660), (904, 760430), (1115, 616528), (1130, 608344), (1240, 554378), (1243, 553040), (1364, 503980), (1705, 403184), (1784, 385330), (1808, 380215), (2230, 308264), (2260, 304172), (2453, 280240), (2480, 277189), (2486, 276520), (2728, 251990), (3410, 201592), (3503, 196240), (3568, 192665), (4460, 154132), (4520, 152086), (4906, 140120), (4972, 138260), (5456, 125995), (6215, 110608), (6820, 100796), (6913, 99440), (7006, 98120), (8920, 77066), (9040, 76043), (9812, 70060), (9944, 69130), (12265, 56048), (12430, 55304), (13640, 50398), (13826, 49720), (14012, 49060), (17515, 39248), (17840, 38533), (19624, 35030), (19888, 34565), (24530, 28024), (24860, 27652), (25199, 27280)]