78945280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:949

約数の個数: 88

約数和(自身を含む): 200737008

約数和(自身を除く): 121791728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 907, 1024, 1088, 1280, 1360, 1814, 2176, 2560, 2720, 3628, 4352, 4535, 5120, 5440, 7256, 8704, 9070, 10880, 14512, 15419, 17408, 18140, 21760, 29024, 30838, 36280, 43520, 58048, 61676, 72560, 77095, 87040, 116096, 123352, 145120, 154190, 232192, 246704, 290240, 308380, 464384, 493408, 580480, 616760, 928768, 986816, 1160960, 1233520, 1973632, 2321920, 2467040, 3947264, 4643840, 4934080, 7894528, 9868160, 15789056, 19736320, 39472640, 78945280]

約数ペア:

[(1, 78945280), (2, 39472640), (4, 19736320), (5, 15789056), (8, 9868160), (10, 7894528), (16, 4934080), (17, 4643840), (20, 3947264), (32, 2467040), (34, 2321920), (40, 1973632), (64, 1233520), (68, 1160960), (80, 986816), (85, 928768), (128, 616760), (136, 580480), (160, 493408), (170, 464384), (256, 308380), (272, 290240), (320, 246704), (340, 232192), (512, 154190), (544, 145120), (640, 123352), (680, 116096), (907, 87040), (1024, 77095), (1088, 72560), (1280, 61676), (1360, 58048), (1814, 43520), (2176, 36280), (2560, 30838), (2720, 29024), (3628, 21760), (4352, 18140), (4535, 17408), (5120, 15419), (5440, 14512), (7256, 10880), (8704, 9070)]