42878420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 104781600

約数和(自身を除く): 61903180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 89, 109, 130, 170, 178, 218, 221, 260, 340, 356, 436, 442, 445, 545, 884, 890, 1090, 1105, 1157, 1417, 1513, 1780, 1853, 2180, 2210, 2314, 2834, 3026, 3706, 4420, 4628, 5668, 5785, 6052, 7085, 7412, 7565, 9265, 9701, 11570, 14170, 15130, 18530, 19402, 19669, 23140, 24089, 28340, 30260, 37060, 38804, 39338, 48178, 48505, 78676, 96356, 97010, 98345, 120445, 126113, 164917, 194020, 196690, 240890, 252226, 329834, 393380, 481780, 504452, 630565, 659668, 824585, 1261130, 1649170, 2143921, 2522260, 3298340, 4287842, 8575684, 10719605, 21439210, 42878420]

約数ペア:

[(1, 42878420), (2, 21439210), (4, 10719605), (5, 8575684), (10, 4287842), (13, 3298340), (17, 2522260), (20, 2143921), (26, 1649170), (34, 1261130), (52, 824585), (65, 659668), (68, 630565), (85, 504452), (89, 481780), (109, 393380), (130, 329834), (170, 252226), (178, 240890), (218, 196690), (221, 194020), (260, 164917), (340, 126113), (356, 120445), (436, 98345), (442, 97010), (445, 96356), (545, 78676), (884, 48505), (890, 48178), (1090, 39338), (1105, 38804), (1157, 37060), (1417, 30260), (1513, 28340), (1780, 24089), (1853, 23140), (2180, 19669), (2210, 19402), (2314, 18530), (2834, 15130), (3026, 14170), (3706, 11570), (4420, 9701), (4628, 9265), (5668, 7565), (5785, 7412), (6052, 7085)]