78321780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4889}}^1$

素因数の和:4993

約数の個数: 72

約数和(自身を含む): 240294600

約数和(自身を除く): 161972820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 4889, 5340, 8010, 9778, 14667, 16020, 19556, 24445, 29334, 44001, 48890, 58668, 73335, 88002, 97780, 146670, 176004, 220005, 293340, 435121, 440010, 870242, 880020, 1305363, 1740484, 2175605, 2610726, 3916089, 4351210, 5221452, 6526815, 7832178, 8702420, 13053630, 15664356, 19580445, 26107260, 39160890, 78321780]

約数ペア:

[(1, 78321780), (2, 39160890), (3, 26107260), (4, 19580445), (5, 15664356), (6, 13053630), (9, 8702420), (10, 7832178), (12, 6526815), (15, 5221452), (18, 4351210), (20, 3916089), (30, 2610726), (36, 2175605), (45, 1740484), (60, 1305363), (89, 880020), (90, 870242), (178, 440010), (180, 435121), (267, 293340), (356, 220005), (445, 176004), (534, 146670), (801, 97780), (890, 88002), (1068, 73335), (1335, 58668), (1602, 48890), (1780, 44001), (2670, 29334), (3204, 24445), (4005, 19556), (4889, 16020), (5340, 14667), (8010, 9778)]