28920060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:772

約数の個数: 144

約数和(自身を含む): 100166976

約数和(自身を除く): 71246916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 727, 765, 780, 884, 1020, 1105, 1170, 1326, 1454, 1530, 1989, 2181, 2210, 2340, 2652, 2908, 3060, 3315, 3635, 3978, 4362, 4420, 6543, 6630, 7270, 7956, 8724, 9451, 9945, 10905, 12359, 13086, 13260, 14540, 18902, 19890, 21810, 24718, 26172, 28353, 32715, 37077, 37804, 39780, 43620, 47255, 49436, 56706, 61795, 65430, 74154, 85059, 94510, 111231, 113412, 123590, 130860, 141765, 148308, 160667, 170118, 185385, 189020, 222462, 247180, 283530, 321334, 340236, 370770, 425295, 444924, 482001, 556155, 567060, 642668, 741540, 803335, 850590, 964002, 1112310, 1446003, 1606670, 1701180, 1928004, 2224620, 2410005, 2892006, 3213340, 4820010, 5784012, 7230015, 9640020, 14460030, 28920060]

約数ペア:

[(1, 28920060), (2, 14460030), (3, 9640020), (4, 7230015), (5, 5784012), (6, 4820010), (9, 3213340), (10, 2892006), (12, 2410005), (13, 2224620), (15, 1928004), (17, 1701180), (18, 1606670), (20, 1446003), (26, 1112310), (30, 964002), (34, 850590), (36, 803335), (39, 741540), (45, 642668), (51, 567060), (52, 556155), (60, 482001), (65, 444924), (68, 425295), (78, 370770), (85, 340236), (90, 321334), (102, 283530), (117, 247180), (130, 222462), (153, 189020), (156, 185385), (170, 170118), (180, 160667), (195, 148308), (204, 141765), (221, 130860), (234, 123590), (255, 113412), (260, 111231), (306, 94510), (340, 85059), (390, 74154), (442, 65430), (468, 61795), (510, 56706), (585, 49436), (612, 47255), (663, 43620), (727, 39780), (765, 37804), (780, 37077), (884, 32715), (1020, 28353), (1105, 26172), (1170, 24718), (1326, 21810), (1454, 19890), (1530, 18902), (1989, 14540), (2181, 13260), (2210, 13086), (2340, 12359), (2652, 10905), (2908, 9945), (3060, 9451), (3315, 8724), (3635, 7956), (3978, 7270), (4362, 6630), (4420, 6543)]