398513335280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{647}}^1\times {\mathrm{809}}^1$

素因数の和:1807

約数の個数: 160

約数和(自身を含む): 962218414080

約数和(自身を除く): 563705078800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 307, 310, 496, 614, 620, 647, 809, 1228, 1240, 1294, 1535, 1618, 2456, 2480, 2588, 3070, 3235, 3236, 4045, 4912, 5176, 6140, 6470, 6472, 8090, 9517, 10352, 12280, 12940, 12944, 16180, 19034, 20057, 24560, 25079, 25880, 32360, 38068, 40114, 47585, 50158, 51760, 64720, 76136, 80228, 95170, 100285, 100316, 125395, 152272, 160456, 190340, 198629, 200570, 200632, 248363, 250790, 320912, 380680, 397258, 401140, 401264, 496726, 501580, 523423, 761360, 794516, 802280, 993145, 993452, 1003160, 1046846, 1241815, 1589032, 1604560, 1986290, 1986904, 2006320, 2093692, 2483630, 2617115, 3178064, 3972580, 3973808, 4187384, 4967260, 5234230, 6157499, 7699253, 7945160, 8374768, 9934520, 10468460, 12314998, 15398506, 15890320, 16226113, 19869040, 20936920, 24629996, 30787495, 30797012, 32452226, 38496265, 41873840, 49259992, 61574990, 61594024, 64904452, 76992530, 81130565, 98519984, 123149980, 123188048, 129808904, 153985060, 160690861, 162261130, 246299960, 259617808, 307970120, 321381722, 324522260, 492599920, 615940240, 642763444, 649044520, 803454305, 1285526888, 1298089040, 1606908610, 2571053776, 3213817220, 4981416691, 6427634440, 9962833382, 12855268880, 19925666764, 24907083455, 39851333528, 49814166910, 79702667056, 99628333820, 199256667640, 398513335280]

約数ペア:

[(1, 398513335280), (2, 199256667640), (4, 99628333820), (5, 79702667056), (8, 49814166910), (10, 39851333528), (16, 24907083455), (20, 19925666764), (31, 12855268880), (40, 9962833382), (62, 6427634440), (80, 4981416691), (124, 3213817220), (155, 2571053776), (248, 1606908610), (307, 1298089040), (310, 1285526888), (496, 803454305), (614, 649044520), (620, 642763444), (647, 615940240), (809, 492599920), (1228, 324522260), (1240, 321381722), (1294, 307970120), (1535, 259617808), (1618, 246299960), (2456, 162261130), (2480, 160690861), (2588, 153985060), (3070, 129808904), (3235, 123188048), (3236, 123149980), (4045, 98519984), (4912, 81130565), (5176, 76992530), (6140, 64904452), (6470, 61594024), (6472, 61574990), (8090, 49259992), (9517, 41873840), (10352, 38496265), (12280, 32452226), (12940, 30797012), (12944, 30787495), (16180, 24629996), (19034, 20936920), (20057, 19869040), (24560, 16226113), (25079, 15890320), (25880, 15398506), (32360, 12314998), (38068, 10468460), (40114, 9934520), (47585, 8374768), (50158, 7945160), (51760, 7699253), (64720, 6157499), (76136, 5234230), (80228, 4967260), (95170, 4187384), (100285, 3973808), (100316, 3972580), (125395, 3178064), (152272, 2617115), (160456, 2483630), (190340, 2093692), (198629, 2006320), (200570, 1986904), (200632, 1986290), (248363, 1604560), (250790, 1589032), (320912, 1241815), (380680, 1046846), (397258, 1003160), (401140, 993452), (401264, 993145), (496726, 802280), (501580, 794516), (523423, 761360)]