320257280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1153}}^1$

素因数の和:1212

約数の個数: 144

約数和(自身を含む): 905769984

約数和(自身を除く): 585512704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1153, 1240, 1280, 1736, 1792, 1984, 2170, 2240, 2306, 2480, 3472, 3968, 4340, 4480, 4612, 4960, 5765, 6944, 7936, 8071, 8680, 8960, 9224, 9920, 11530, 13888, 16142, 17360, 18448, 19840, 23060, 27776, 32284, 34720, 35743, 36896, 39680, 40355, 46120, 55552, 64568, 69440, 71486, 73792, 80710, 92240, 129136, 138880, 142972, 147584, 161420, 178715, 184480, 250201, 258272, 277760, 285944, 295168, 322840, 357430, 368960, 500402, 516544, 571888, 645680, 714860, 737920, 1000804, 1033088, 1143776, 1251005, 1291360, 1429720, 1475840, 2001608, 2066176, 2287552, 2502010, 2582720, 2859440, 4003216, 4575104, 5004020, 5165440, 5718880, 8006432, 9150208, 10008040, 10330880, 11437760, 16012864, 20016080, 22875520, 32025728, 40032160, 45751040, 64051456, 80064320, 160128640, 320257280]

約数ペア:

[(1, 320257280), (2, 160128640), (4, 80064320), (5, 64051456), (7, 45751040), (8, 40032160), (10, 32025728), (14, 22875520), (16, 20016080), (20, 16012864), (28, 11437760), (31, 10330880), (32, 10008040), (35, 9150208), (40, 8006432), (56, 5718880), (62, 5165440), (64, 5004020), (70, 4575104), (80, 4003216), (112, 2859440), (124, 2582720), (128, 2502010), (140, 2287552), (155, 2066176), (160, 2001608), (217, 1475840), (224, 1429720), (248, 1291360), (256, 1251005), (280, 1143776), (310, 1033088), (320, 1000804), (434, 737920), (448, 714860), (496, 645680), (560, 571888), (620, 516544), (640, 500402), (868, 368960), (896, 357430), (992, 322840), (1085, 295168), (1120, 285944), (1153, 277760), (1240, 258272), (1280, 250201), (1736, 184480), (1792, 178715), (1984, 161420), (2170, 147584), (2240, 142972), (2306, 138880), (2480, 129136), (3472, 92240), (3968, 80710), (4340, 73792), (4480, 71486), (4612, 69440), (4960, 64568), (5765, 55552), (6944, 46120), (7936, 40355), (8071, 39680), (8680, 36896), (8960, 35743), (9224, 34720), (9920, 32284), (11530, 27776), (13888, 23060), (16142, 19840), (17360, 18448)]