87198640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 211191840

約数和(自身を除く): 123993200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 89, 148, 178, 185, 296, 331, 356, 370, 445, 592, 662, 712, 740, 890, 1324, 1424, 1480, 1655, 1780, 2648, 2960, 3293, 3310, 3560, 5296, 6586, 6620, 7120, 12247, 13172, 13240, 16465, 24494, 26344, 26480, 29459, 32930, 48988, 52688, 58918, 61235, 65860, 97976, 117836, 122470, 131720, 147295, 195952, 235672, 244940, 263440, 294590, 471344, 489880, 589180, 979760, 1089983, 1178360, 2179966, 2356720, 4359932, 5449915, 8719864, 10899830, 17439728, 21799660, 43599320, 87198640]

約数ペア:

[(1, 87198640), (2, 43599320), (4, 21799660), (5, 17439728), (8, 10899830), (10, 8719864), (16, 5449915), (20, 4359932), (37, 2356720), (40, 2179966), (74, 1178360), (80, 1089983), (89, 979760), (148, 589180), (178, 489880), (185, 471344), (296, 294590), (331, 263440), (356, 244940), (370, 235672), (445, 195952), (592, 147295), (662, 131720), (712, 122470), (740, 117836), (890, 97976), (1324, 65860), (1424, 61235), (1480, 58918), (1655, 52688), (1780, 48988), (2648, 32930), (2960, 29459), (3293, 26480), (3310, 26344), (3560, 24494), (5296, 16465), (6586, 13240), (6620, 13172), (7120, 12247)]