64771020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 212048928

約数和(自身を除く): 147277908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 61, 68, 85, 90, 102, 122, 153, 170, 180, 183, 204, 244, 255, 305, 306, 340, 347, 366, 510, 549, 610, 612, 694, 732, 765, 915, 1020, 1037, 1041, 1098, 1220, 1388, 1530, 1735, 1830, 2074, 2082, 2196, 2745, 3060, 3111, 3123, 3470, 3660, 4148, 4164, 5185, 5205, 5490, 5899, 6222, 6246, 6940, 9333, 10370, 10410, 10980, 11798, 12444, 12492, 15555, 15615, 17697, 18666, 20740, 20820, 21167, 23596, 29495, 31110, 31230, 35394, 37332, 42334, 46665, 53091, 58990, 62220, 62460, 63501, 70788, 84668, 88485, 93330, 105835, 106182, 117980, 127002, 176970, 186660, 190503, 211670, 212364, 254004, 265455, 317505, 353940, 359839, 381006, 423340, 530910, 635010, 719678, 762012, 952515, 1061820, 1079517, 1270020, 1439356, 1799195, 1905030, 2159034, 3238551, 3598390, 3810060, 4318068, 5397585, 6477102, 7196780, 10795170, 12954204, 16192755, 21590340, 32385510, 64771020]

約数ペア:

[(1, 64771020), (2, 32385510), (3, 21590340), (4, 16192755), (5, 12954204), (6, 10795170), (9, 7196780), (10, 6477102), (12, 5397585), (15, 4318068), (17, 3810060), (18, 3598390), (20, 3238551), (30, 2159034), (34, 1905030), (36, 1799195), (45, 1439356), (51, 1270020), (60, 1079517), (61, 1061820), (68, 952515), (85, 762012), (90, 719678), (102, 635010), (122, 530910), (153, 423340), (170, 381006), (180, 359839), (183, 353940), (204, 317505), (244, 265455), (255, 254004), (305, 212364), (306, 211670), (340, 190503), (347, 186660), (366, 176970), (510, 127002), (549, 117980), (610, 106182), (612, 105835), (694, 93330), (732, 88485), (765, 84668), (915, 70788), (1020, 63501), (1037, 62460), (1041, 62220), (1098, 58990), (1220, 53091), (1388, 46665), (1530, 42334), (1735, 37332), (1830, 35394), (2074, 31230), (2082, 31110), (2196, 29495), (2745, 23596), (3060, 21167), (3111, 20820), (3123, 20740), (3470, 18666), (3660, 17697), (4148, 15615), (4164, 15555), (5185, 12492), (5205, 12444), (5490, 11798), (5899, 10980), (6222, 10410), (6246, 10370), (6940, 9333)]