69998890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 145297152

約数和(自身を除く): 75298262

約数列:

[1, 2, 5, 10, 13, 23, 26, 41, 46, 65, 82, 115, 130, 205, 230, 299, 410, 533, 571, 598, 943, 1066, 1142, 1495, 1886, 2665, 2855, 2990, 4715, 5330, 5710, 7423, 9430, 12259, 13133, 14846, 23411, 24518, 26266, 37115, 46822, 61295, 65665, 74230, 117055, 122590, 131330, 170729, 234110, 304343, 341458, 538453, 608686, 853645, 1076906, 1521715, 1707290, 2692265, 3043430, 5384530, 6999889, 13999778, 34999445, 69998890]

約数ペア:

[(1, 69998890), (2, 34999445), (5, 13999778), (10, 6999889), (13, 5384530), (23, 3043430), (26, 2692265), (41, 1707290), (46, 1521715), (65, 1076906), (82, 853645), (115, 608686), (130, 538453), (205, 341458), (230, 304343), (299, 234110), (410, 170729), (533, 131330), (571, 122590), (598, 117055), (943, 74230), (1066, 65665), (1142, 61295), (1495, 46822), (1886, 37115), (2665, 26266), (2855, 24518), (2990, 23411), (4715, 14846), (5330, 13133), (5710, 12259), (7423, 9430)]