64281420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3040

約数の個数: 144

約数和(自身を含む): 236029248

約数和(自身を除く): 171747828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3001, 3060, 3570, 4284, 5355, 6002, 7140, 9003, 10710, 12004, 15005, 18006, 21007, 21420, 27009, 30010, 36012, 42014, 45015, 51017, 54018, 60020, 63021, 84028, 90030, 102034, 105035, 108036, 126042, 135045, 153051, 180060, 189063, 204068, 210070, 252084, 255085, 270090, 306102, 315105, 357119, 378126, 420140, 459153, 510170, 540180, 612204, 630210, 714238, 756252, 765255, 918306, 945315, 1020340, 1071357, 1260420, 1428476, 1530510, 1785595, 1836612, 1890630, 2142714, 2295765, 3061020, 3214071, 3571190, 3781260, 4285428, 4591530, 5356785, 6428142, 7142380, 9183060, 10713570, 12856284, 16070355, 21427140, 32140710, 64281420]

約数ペア:

[(1, 64281420), (2, 32140710), (3, 21427140), (4, 16070355), (5, 12856284), (6, 10713570), (7, 9183060), (9, 7142380), (10, 6428142), (12, 5356785), (14, 4591530), (15, 4285428), (17, 3781260), (18, 3571190), (20, 3214071), (21, 3061020), (28, 2295765), (30, 2142714), (34, 1890630), (35, 1836612), (36, 1785595), (42, 1530510), (45, 1428476), (51, 1260420), (60, 1071357), (63, 1020340), (68, 945315), (70, 918306), (84, 765255), (85, 756252), (90, 714238), (102, 630210), (105, 612204), (119, 540180), (126, 510170), (140, 459153), (153, 420140), (170, 378126), (180, 357119), (204, 315105), (210, 306102), (238, 270090), (252, 255085), (255, 252084), (306, 210070), (315, 204068), (340, 189063), (357, 180060), (420, 153051), (476, 135045), (510, 126042), (595, 108036), (612, 105035), (630, 102034), (714, 90030), (765, 84028), (1020, 63021), (1071, 60020), (1190, 54018), (1260, 51017), (1428, 45015), (1530, 42014), (1785, 36012), (2142, 30010), (2380, 27009), (3001, 21420), (3060, 21007), (3570, 18006), (4284, 15005), (5355, 12004), (6002, 10710), (7140, 9003)]