398218880

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2153}}^1$

素因数の和:2206

約数の個数: 96

約数和(自身を含む): 1011755340

約数和(自身を除く): 613536460

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 289, 320, 340, 544, 578, 640, 680, 1088, 1156, 1360, 1445, 2153, 2176, 2312, 2720, 2890, 4306, 4624, 5440, 5780, 8612, 9248, 10765, 10880, 11560, 17224, 18496, 21530, 23120, 34448, 36601, 36992, 43060, 46240, 68896, 73202, 86120, 92480, 137792, 146404, 172240, 183005, 184960, 275584, 292808, 344480, 366010, 585616, 622217, 688960, 732020, 1171232, 1244434, 1377920, 1464040, 2342464, 2488868, 2928080, 3111085, 4684928, 4977736, 5856160, 6222170, 9955472, 11712320, 12444340, 19910944, 23424640, 24888680, 39821888, 49777360, 79643776, 99554720, 199109440, 398218880]

約数ペア:

[(1, 398218880), (2, 199109440), (4, 99554720), (5, 79643776), (8, 49777360), (10, 39821888), (16, 24888680), (17, 23424640), (20, 19910944), (32, 12444340), (34, 11712320), (40, 9955472), (64, 6222170), (68, 5856160), (80, 4977736), (85, 4684928), (128, 3111085), (136, 2928080), (160, 2488868), (170, 2342464), (272, 1464040), (289, 1377920), (320, 1244434), (340, 1171232), (544, 732020), (578, 688960), (640, 622217), (680, 585616), (1088, 366010), (1156, 344480), (1360, 292808), (1445, 275584), (2153, 184960), (2176, 183005), (2312, 172240), (2720, 146404), (2890, 137792), (4306, 92480), (4624, 86120), (5440, 73202), (5780, 68896), (8612, 46240), (9248, 43060), (10765, 36992), (10880, 36601), (11560, 34448), (17224, 23120), (18496, 21530)]