30780180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{631}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 93859584

約数和(自身を除く): 63079404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 631, 813, 1084, 1262, 1355, 1626, 1893, 2439, 2524, 2710, 3155, 3252, 3786, 4065, 4878, 5420, 5679, 6310, 7572, 8130, 9465, 9756, 11358, 12195, 12620, 16260, 18930, 22716, 24390, 28395, 37860, 48780, 56790, 113580, 171001, 342002, 513003, 684004, 855005, 1026006, 1539009, 1710010, 2052012, 2565015, 3078018, 3420020, 5130030, 6156036, 7695045, 10260060, 15390090, 30780180]

約数ペア:

[(1, 30780180), (2, 15390090), (3, 10260060), (4, 7695045), (5, 6156036), (6, 5130030), (9, 3420020), (10, 3078018), (12, 2565015), (15, 2052012), (18, 1710010), (20, 1539009), (30, 1026006), (36, 855005), (45, 684004), (60, 513003), (90, 342002), (180, 171001), (271, 113580), (542, 56790), (631, 48780), (813, 37860), (1084, 28395), (1262, 24390), (1355, 22716), (1626, 18930), (1893, 16260), (2439, 12620), (2524, 12195), (2710, 11358), (3155, 9756), (3252, 9465), (3786, 8130), (4065, 7572), (4878, 6310), (5420, 5679)]