397336960

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{26993}}^1$

素因数の和:27035

約数の個数: 64

約数和(自身を含む): 991219680

約数和(自身を除く): 593882720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 7360, 14720, 26993, 53986, 107972, 134965, 215944, 269930, 431888, 539860, 620839, 863776, 1079720, 1241678, 1727552, 2159440, 2483356, 3104195, 3455104, 4318880, 4966712, 6208390, 8637760, 9933424, 12416780, 17275520, 19866848, 24833560, 39733696, 49667120, 79467392, 99334240, 198668480, 397336960]

約数ペア:

[(1, 397336960), (2, 198668480), (4, 99334240), (5, 79467392), (8, 49667120), (10, 39733696), (16, 24833560), (20, 19866848), (23, 17275520), (32, 12416780), (40, 9933424), (46, 8637760), (64, 6208390), (80, 4966712), (92, 4318880), (115, 3455104), (128, 3104195), (160, 2483356), (184, 2159440), (230, 1727552), (320, 1241678), (368, 1079720), (460, 863776), (640, 620839), (736, 539860), (920, 431888), (1472, 269930), (1840, 215944), (2944, 134965), (3680, 107972), (7360, 53986), (14720, 26993)]