217857040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8431}}^1$

素因数の和:8480

約数の個数: 80

約数和(自身を含む): 564606720

約数和(自身を除く): 346749680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 8431, 12920, 16862, 25840, 33724, 42155, 67448, 84310, 134896, 143327, 160189, 168620, 286654, 320378, 337240, 573308, 640756, 674480, 716635, 800945, 1146616, 1281512, 1433270, 1601890, 2293232, 2563024, 2723213, 2866540, 3203780, 5446426, 5733080, 6407560, 10892852, 11466160, 12815120, 13616065, 21785704, 27232130, 43571408, 54464260, 108928520, 217857040]

約数ペア:

[(1, 217857040), (2, 108928520), (4, 54464260), (5, 43571408), (8, 27232130), (10, 21785704), (16, 13616065), (17, 12815120), (19, 11466160), (20, 10892852), (34, 6407560), (38, 5733080), (40, 5446426), (68, 3203780), (76, 2866540), (80, 2723213), (85, 2563024), (95, 2293232), (136, 1601890), (152, 1433270), (170, 1281512), (190, 1146616), (272, 800945), (304, 716635), (323, 674480), (340, 640756), (380, 573308), (646, 337240), (680, 320378), (760, 286654), (1292, 168620), (1360, 160189), (1520, 143327), (1615, 134896), (2584, 84310), (3230, 67448), (5168, 42155), (6460, 33724), (8431, 25840), (12920, 16862)]