28494830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 63842688

約数和(自身を除く): 35347858

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 173, 181, 182, 346, 362, 455, 865, 905, 910, 1211, 1267, 1730, 1810, 2249, 2353, 2422, 2534, 4498, 4706, 6055, 6335, 11245, 11765, 12110, 12670, 15743, 16471, 22490, 23530, 31313, 31486, 32942, 62626, 78715, 82355, 156565, 157430, 164710, 219191, 313130, 407069, 438382, 814138, 1095955, 2035345, 2191910, 2849483, 4070690, 5698966, 14247415, 28494830]

約数ペア:

[(1, 28494830), (2, 14247415), (5, 5698966), (7, 4070690), (10, 2849483), (13, 2191910), (14, 2035345), (26, 1095955), (35, 814138), (65, 438382), (70, 407069), (91, 313130), (130, 219191), (173, 164710), (181, 157430), (182, 156565), (346, 82355), (362, 78715), (455, 62626), (865, 32942), (905, 31486), (910, 31313), (1211, 23530), (1267, 22490), (1730, 16471), (1810, 15743), (2249, 12670), (2353, 12110), (2422, 11765), (2534, 11245), (4498, 6335), (4706, 6055)]