100405280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{653}}^1$

素因数の和:730

約数の個数: 72

約数和(自身を含む): 245481516

約数和(自身を除く): 145076236

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 653, 961, 992, 1240, 1306, 1922, 2480, 2612, 3265, 3844, 4805, 4960, 5224, 6530, 7688, 9610, 10448, 13060, 15376, 19220, 20243, 20896, 26120, 30752, 38440, 40486, 52240, 76880, 80972, 101215, 104480, 153760, 161944, 202430, 323888, 404860, 627533, 647776, 809720, 1255066, 1619440, 2510132, 3137665, 3238880, 5020264, 6275330, 10040528, 12550660, 20081056, 25101320, 50202640, 100405280]

約数ペア:

[(1, 100405280), (2, 50202640), (4, 25101320), (5, 20081056), (8, 12550660), (10, 10040528), (16, 6275330), (20, 5020264), (31, 3238880), (32, 3137665), (40, 2510132), (62, 1619440), (80, 1255066), (124, 809720), (155, 647776), (160, 627533), (248, 404860), (310, 323888), (496, 202430), (620, 161944), (653, 153760), (961, 104480), (992, 101215), (1240, 80972), (1306, 76880), (1922, 52240), (2480, 40486), (2612, 38440), (3265, 30752), (3844, 26120), (4805, 20896), (4960, 20243), (5224, 19220), (6530, 15376), (7688, 13060), (9610, 10448)]