205029540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:410

約数の個数: 144

約数和(自身を含む): 643458816

約数和(自身を除く): 438429276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 71, 90, 122, 142, 180, 183, 213, 244, 263, 284, 305, 355, 366, 426, 526, 549, 610, 639, 710, 732, 789, 852, 915, 1052, 1065, 1098, 1220, 1278, 1315, 1420, 1578, 1830, 2130, 2196, 2367, 2556, 2630, 2745, 3156, 3195, 3660, 3945, 4260, 4331, 4734, 5260, 5490, 6390, 7890, 8662, 9468, 10980, 11835, 12780, 12993, 15780, 16043, 17324, 18673, 21655, 23670, 25986, 32086, 37346, 38979, 43310, 47340, 48129, 51972, 56019, 64172, 64965, 74692, 77958, 80215, 86620, 93365, 96258, 112038, 129930, 144387, 155916, 160430, 168057, 186730, 192516, 194895, 224076, 240645, 259860, 280095, 288774, 320860, 336114, 373460, 389790, 481290, 560190, 577548, 672228, 721935, 779580, 840285, 962580, 1120380, 1139053, 1443870, 1680570, 2278106, 2887740, 3361140, 3417159, 4556212, 5695265, 6834318, 10251477, 11390530, 13668636, 17085795, 20502954, 22781060, 34171590, 41005908, 51257385, 68343180, 102514770, 205029540]

約数ペア:

[(1, 205029540), (2, 102514770), (3, 68343180), (4, 51257385), (5, 41005908), (6, 34171590), (9, 22781060), (10, 20502954), (12, 17085795), (15, 13668636), (18, 11390530), (20, 10251477), (30, 6834318), (36, 5695265), (45, 4556212), (60, 3417159), (61, 3361140), (71, 2887740), (90, 2278106), (122, 1680570), (142, 1443870), (180, 1139053), (183, 1120380), (213, 962580), (244, 840285), (263, 779580), (284, 721935), (305, 672228), (355, 577548), (366, 560190), (426, 481290), (526, 389790), (549, 373460), (610, 336114), (639, 320860), (710, 288774), (732, 280095), (789, 259860), (852, 240645), (915, 224076), (1052, 194895), (1065, 192516), (1098, 186730), (1220, 168057), (1278, 160430), (1315, 155916), (1420, 144387), (1578, 129930), (1830, 112038), (2130, 96258), (2196, 93365), (2367, 86620), (2556, 80215), (2630, 77958), (2745, 74692), (3156, 64965), (3195, 64172), (3660, 56019), (3945, 51972), (4260, 48129), (4331, 47340), (4734, 43310), (5260, 38979), (5490, 37346), (6390, 32086), (7890, 25986), (8662, 23670), (9468, 21655), (10980, 18673), (11835, 17324), (12780, 16043), (12993, 15780)]